This section is devoted to the information that will be useful in the creation of a Kin's Domains.
Benefits of Role-Models
Why do we use role-models to help children learn the skills needed to be a motivated self-learner? Because modeling the behavior, thoughts, and attitudes of successful people has been shown to help a person become more successful.
Our research has shown that almost all of the successful people today (success defined as setting and reaching one's own goal) had a series of role-models. The leaders of today all had great role-models that inspired them to great heights.
Whether it is Bill Clinton that used John F. Kennedy as his role-model or Henry Ford that used Thomas Edison as his role-model (in fact, he hung a picture of Edison near his work area). The selection of good role-models serves as a guide for them to make the most out of their abilities.
Einstein said, "Imagination is more important knowledge." By introducing your child to role-models for all aspects of their lives, you are growing their imagination. With good role-models, you get your child to imagine success.
Role-models are a very powerful force for setting and achieving productive goals. Our minds are naturally developed to learn from the experience of others. Whether the experience is captured in the form of books, stories, or games – the experience of others offers a very powerful way to reach a higher level of success.
For example, teaching concepts of persistence through stories about the famous inventor Thomas Edison that failed 10,000 times before discovering the light bulb is a great way to show a child the value of determination!
It is imperative that children be exposed to good role-models that can guide them to develop their maximum potential in all aspects of their lives. Children naturally look to their surroundings for role-models. If they cannot find a good role-model, they will cling to bad ones.
Children need a set of good role-models to set an example of the behaviors, thinking styles, and attitudes needed to succeed in life.
A child that is intelligent, but does not have role-models to show them qualities like persistence, determination, and creative thinking is bound to be fall short of their true potential.
Having good role-models in a child's life will give them a sense of productive goals and a sense of direction towards those goals. Humans without goals and role-models flounder in their lives.
A survey of most people in prison will show that many of them did not have goals or good role-models to give them a sense of direction! A survey of successful people show that they envisioned their ambitious goals at a young age. These very same successful folks also had positive role-models that they followed to reach their goals.
At the very least, take some time at the dinner table once a week and introduce your child to successful attitudes by telling them stories about successful people throughout human history.
For example, introduce your child to the positive quality of persistence by talking about Edison and his quest to invent the light bulb. Talking about the fact that Edison persisted through 10,000 failures until he finally found a way to make the light bulb. Mention how Edison's success came from his failures.
Stories like these will help inspire your child to be a motivated self-learner and practical dreamer.
Written by Curiosoft Kids Games
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Helping Your Children Choose Their Heroes Through Reading
By Adam Starchild
Children today are starved for the image of real heroes. Celebrities are not the same thing as heroes. Heroes existed way before celebrities ever did, even though celebrities now outshine heroes in children's consciousness.
Worshiping celebrities leaves children with a distinctly empty feeling -- it doesn't teach that they'll have to make sacrifices if they want to achieve anything worthwhile. No- talents become celebrities all the time. The result is that people don't seem to care about achievement or talent -- fame is the only objective.
What is a hero? Despite immense differences in cultures, heroes around the world generally share a number of traits that instruct and inspire people. A hero does something worth talking about, but a hero goes beyond mere fame or celebrity. The hero lives a life worthy of imitation. If they serve only their own fame, they may be celebrities but not heroes. Heroes are catalysts for change. They create new possibilities. They have a vision, and the skill and charm to implement their vision.
Heroes may also be fictional. Children may identify with a character because of the values projected. People tend to grow to be like the people that they admire, but if a child never has any heroes what images will he copy? Adults need heroes too, but the need is even more urgent for children because they don't know how to think abstractly. But they can imagine what their hero would do in the circumstances, and it gives them a useful reference point to build abstract thinking skills.
Good reading selections can help your children find their own heroes -- to provide the emotional experience of admiring a figure they can look up to. Through the wide variety of reading experiences and choices of heroes, your children will find those models that best suit them.
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Plato and Aristotle (by Raphael Santi). Aristotle [right] is a great role-model for kids. He was an Olimpic athlete, philosopher, polymath, a student of Plato and a teacher of Alexander the Great. |
It is important that children become familiar with worthy examples -- both real and fictional -- that they can emulate.
This does not mean that everything they read needs to be populated with heroes. Children will turn away from fictional villains they don't like. It is important to avoid children's stories in which the hero commits and gets away with evil actions. Don't assume that because a story is traditional it is automatically the literature you want your child to read. It is easy to think "that's o.k., it's a traditional children's story and I know it isn't dirty" without giving a moment's thought to the other messages that the story might be subconsciously conveying to your child.
Goldilocks and the Three Bears is certainly a traditional story, and most parents buy the book almost automatically, without a thought to the message. Goldilocks is lost and frightened, goes to a house and knocks, but no one is home. But that doesn't justify the crimes that follow. Yes, crimes! Breaking and entering, petty vandalism and theft -- even the nerve to go to sleep in a bed which doesn't belong to her either.
Is this really what you intended to teach your child -- that if you get lost it is alright to break into anybody's house and use their property? The story may be traditional, but these aren't the values you want to be teaching. It is so easy to assume that a well known book is okay, and select it for your child without even being aware of the subtle messages that it conveys -- messages that may be having far more influence on your child than you realize. After all, aren't you the one that told your child that this was a good book -- or read the story aloud? As your child is exposed to these traditional stories, you will want to take the time to explain the lessons in them. Without this guidance you may be unknowingly confusing the child. A child can also become confused when the villains in the story are likeable people who do evil.
Visible heroes today may be a bit harder to find and less dramatic, which is all the more reason to help your children start with the clear cut fictional heroes and then gradually transfer those learned ideals to the real world around them. There is no better place for a child to start than well-selected stories and novels where the hero has ability and integrity -- somebody who accomplishes an important, positive job.
All children start life with the same empty brain cells. What the adults around them put into those minds determines the resulting personalities. Stories -- whether heard or read -- are some of the most fundamental influences on a child.
One writer whose books are highly suitable for all ages is Robert Heinlein. He uses a science fiction format to deliver important messages, and it is often easier for a child to receive and understand the message when the setting is entirely unfamiliar and the characters and events can therefore be seen more clearly. For an older child you might want to start with The Past Through Tomorrow a collection of his shorter stories. This lets the child break the reading into distinct units. For younger children look for Podkayne of Mars, Between Planets, or Have Spacesuit Will Travel.
If your child likes westerns, try some of the books by Louis Lamour.
For preschoolers, any Dr. Seuss books. They may not be obvious as sources of heroes from an adult viewpoint, but from a small child's viewpoint they have characters that are easy to remember.
For the whole family, try The Fire Hunter by Jim Kjelgaard or Girl Who Owned a City by O. T. Nelson. And Heinlein's The Rolling Stones or Farmer in the Sky. Both are strong family books about future pioneers who have to solve problems for themselves. These heroes had to make themselves intelligent and capable to make a new, better life for themselves.
Don't dismiss heroes just because they are fictional. The power of creative imagination is one that is critically important to develop in children. When they learn to imagine with confidence and pleasure things they can't actually see, it is the first step towards conceptualization and abstract thinking -- important skills for handling adult challenges.
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Role Models and Kids
What You Need to Know About Foodborne Illness-Causing Organisms in the U.S.
While the American food supply is among the safest in the world, the Federal government estimates that there are about 48 million cases of foodborne illness annually–the equivalent of sickening 1 in 6 Americans each year. And each year these illnesses result in an estimated 128,000 hospitalizations and 3,000 deaths.
The chart below includes foodborne disease-causing organisms that frequently cause illness in the United States. As the chart shows, the threats are numerous and varied, with symptoms ranging from relatively mild discomfort to very serious,life-threatening illness. While the very young, the elderly, and persons with weakened immune systems are at greatest risk of serious consequences from most foodborne illnesses, some of the organisms shown below pose grave threats to all persons.
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Organism | Common Name of Illness | Onset Time After Ingesting | Signs & Symptoms | Duration | Food Sources |
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Bacillus cereus | B. cereus food poisoning | 10-16 hrs | Abdominal cramps, watery diarrhea, nausea | 24-48 hours | Meats, stews, gravies, vanilla sauce | Campylobacter jejuni | Campylobacteriosis | 2-5 days | Diarrhea, cramps, fever, and vomiting; diarrhea may be bloody | 2-10 days | Raw and undercooked poultry, unpasteurized milk,contaminated water | Clostridium botulinum | Botulism | 12-72 hours | Vomiting, diarrhea, blurred vision, double vision, difficulty in swallowing, muscle weakness. Can result in respiratory failure and death | Variable | Improperly canned foods, especially home-canned vegetables, fermented fish, baked potatoes in aluminum foil | Clostridium perfringens | Perfringens food poisoning | 8–16 hours | Intense abdominal cramps, watery diarrhea | Usually 24 hours | Meats, poultry, gravy, dried or precooked foods, time and/or temperature-abused foods | Cryptosporidium | Intestinal cryptosporidiosis | 2-10 days | Diarrhea (usually watery), stomach cramps, upset stomach, slight fever | May be remitting and relapsing over weeks to months | Uncooked food or food contaminated by an ill food handler after cooking, contaminated drinking water | Cyclospora cayetanensis | Cyclosporiasis | 1-14 days, usually at least 1 week | Diarrhea (usually watery), loss of appetite, substantial loss of weight, stomach cramps, nausea, vomiting, fatigue | May be remitting and relapsing over weeks to months | Various types of fresh produce (imported berries, lettuce, basil) | E. coli (Escherichia coli) producing toxin | E. coli infection (common cause of “travelers’ diarrhea”) | 1-3 days | Watery diarrhea, abdominal cramps, some vomiting | 3-7 or more days | Water or food contaminated with human feces | E. coli O157:H7 | Hemorrhagic colitis or E. coli O157:H7 infection | 1-8 days | Severe (often bloody) diarrhea, abdominal pain and vomiting. Usually, little or no fever is present. More common in children 4 years or younger. Can lead to kidney failure. | 5-10 days | Undercooked beef (especially hamburger), unpasteurized milk and juice, raw fruits and vegetables (e.g. sprouts), and contaminated water | Hepatitis A | Hepatitis | 28 days average (15-50 days) | Diarrhea, dark urine, jaundice, and flu-like symptoms, i.e., fever, headache, nausea, and abdominal pain | Variable, 2 weeks-3 months | Raw produce, contaminated drinking water, uncooked foods and cooked foods that are not reheated after contact with an infected food handler; shellfish from contaminated waters | Listeria monocytogenes | Listeriosis | 9-48 hrs for gastro-intestinal symptoms, 2-6 weeks for invasive disease | Fever, muscle aches, and nausea or diarrhea. Pregnant women may have mild flu-like illness, and infection can lead to premature delivery or stillbirth. The elderly or immunocompromised patients may develop bacteremia or meningitis. | Variable | Unpasteurized milk, soft cheeses made with unpasteurized milk, ready-to-eat deli meats | Noroviruses | Variously called viral gastroenteritis, winter diarrhea, acute non- bacterial gastroenteritis, food poisoning, and food infection | 12-48 hrs | Nausea, vomiting, abdominal cramping, diarrhea, fever, headache. Diarrhea is more prevalent in adults, vomiting more common in children. | 12-60 hrs | Raw produce, contaminated drinking water, uncooked foods and cooked foods that are not reheated after contact with an infected food handler; shellfish from contaminated waters | Salmonella | Salmonellosis | 6-48 hours | Diarrhea, fever, abdominal cramps, vomiting | 4-7 days | Eggs, poultry, meat, unpateurized milk or juice, cheese, contaminated raw fruits and vegetables | Shigella | Shigellosis or Bacillary dysentery | 4-7 days | Abdominal cramps, fever, and diarrhea. Stools may contain blood and mucus. | 24-48 hrs | Raw produce, contaminated drinking water, uncooked foods and cooked foods that are not reheated after contact with an infected food handler | Staphylococcus aureus | Staphylococcal food poisoning | 1-6 hours | Sudden onset of severe nausea and vomiting. Abdominal cramps. Diarrhea and fever may be present. | 24-48 hours | Unrefrigerated or improperly refrigerated meats, potato and egg salads, cream pastries | Vibrio parahaemolyticus | V. parahaemolyticus infection | 4-96 hours | Watery (occasionally bloody) diarrhea, abdominal cramps, nausea, vomiting, fever | 2-5 days | Undercooked or raw seafood, such as shellfish | Vibrio vulnificus | V. vulnificus infection | 1-7 days | Vomiting, diarrhea, abdominal pain, bloodborne infection. Fever, bleeding within the skin, ulcers requiring surgical removal. Can be fatal to persons with liver disease or weakened immune systems. | 2-8 days | Undercooked or raw seafood, such as shellfish (especially oysters) |
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Protect Yourself from Foodborne Illness
by Leah Greenbaum, Special to Lifescript
Do you know if what you're eating is safe? From food recalls to salmonella-tainted eggs, we've all seen the outcome of foodborne illness in the news. Find out how to protect yourself from food poisoning - and what to do when an outbreak occurs...
Eggs, unfortunately, aren't the only source of foodborne illness.
A farm grows alfalfa sprouts next to a chicken coop, exposing them to poultry feces. A filthy truck contaminates a load of spinach.
Or a worker at a cookie-dough factory doesn't wash his hands after visiting the bathroom.
Do you know how or even think about how food is handled before it gets to your table? Probably not.
Trouble is, what you don't see can be hazardous to your health.
Foodborne illnesses costs the U.S. $152 billion in health-related expenses every year. An outbreak can wreak havoc on our public food safety system, make favorite foods the enemy and even take lives.
But you can't rely on the government to protect you. That's why Lifescript asked top food-safety experts about how you can avoid food poisoning.
What's Making You Sick?
Many different bacteria can leave you wishing you'd never touched that peanut butter sandwich.
The three most commonly linked to food poisoning are salmonella, campylobacter jejuni ("Campy" or C. jejuni), and Escherichia coli 0157:H7 (E. coli).
All are found in underprocessed foods – including unpasteurized milk and uncooked poultry or red meats – and can easily travel to fruits and vegetables.
These bacteria stem from feces and can linger on hands and skin unless washed off, says Sam Beattie, Ph.D., a food safety specialist at Iowa State University.
They can easily contaminate almost anything, from spinach touched by fecal run-off to poultry crowded into filthy sheds.
Here's a rundown on all three bacteria:
Salmonella
The most frequent cause of food poisoning, salmonella causes about 40,000 complaints to the Centers for Disease Control and Prevention (CDC) and 400 deaths annually.
Symptoms of food poisoning show up within 6-48 hours of eating a contaminated food. Salmonella causes "copious, watery diarrhea," Beattie says. It can dredge up stomach cramps, fever and vomiting too.
Salmonella infection usually doesn't kill, but it can be deadly if it enters the bloodstream and spreads to tissues throughout the body. Then it can lead to other serious infections, such as:
- Meningitis, which affects the brain and spinal cord
- Endocarditis, which targets the lining of the heart or its valves
- Osteomyelitis, which seeks out the bones or marrow
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It can also lead to reactive arthritis, which can cause painful joints and urination, and irritated eyes.
C. jejuni
These unpleasant bacteria, the second-leading cause of food-borne illness, don't receive much media attention since most outbreaks are sporadic and isolated. The bacteria enter the cells of the gut, causing severe diarrhea, abdominal pain and fever.
The illness will usually begin 2-5 days after eating a contaminated food, and recovery can take up to 10 days, a long time for food poisoning.
In rare cases C. jejuni leads to a rare autoimmune disease called Guillain-Barré syndrome, in which the body attacks its nerves, possibly resulting in temporary paralysis and requiring intensive care.
E. coli
This bacteria, usually associated with ground beef, vegetables and fruits, has been responsible for the most Food and Drug Administration (FDA) recalls and receives the most media attention. Yet it infects only about 1 out of every 100,000 people exposed to it.
High-profile outbreaks have involved organic bean sprouts (Germany, 2011), cookie dough (Nestle Tollhouse, June 2009), ground beef (JBS Swift Beef Co., June 2009), green onions (Taco Bell, 2006) and bagged spinach (Mission Organics, 2006).
E. coli 0157:H7, the most common infectious strain of the bacteria, causes severe bloody diarrhea, pain, vomiting and usually little to no fever.
Infected people can also develop hemolytic uremic syndrome (HUS), in which E. coli bacteria enter the blood stream and destroy red blood cells. The damaged cells clog the tiny renal blood vessels, leading to kidney failure.
Protect Yourself
Even if you don't know how your food is processed or grown, you can ward off foodborne illnesses.
Here are seven food safety tips to outsmart the harfmul microbes lurking in your food:
1. Turn Up the Heat
Cook poultry to 180 degrees and meat to about 160 degrees, advise Purdue University food safety experts.
"Cooking to the recommended temperatures will kill" the bad organisms, Beattie says.
But use a food thermometer, not your eyes, to be sure it's done, says Catherine H. Strohbehn, Ph.D., a food-safety specialist and professor at Iowa State University. "Color is not a true indicator of 'doneness.'"
Most fish should be cooked to 140 degrees, but tuna, swordfish and marlin only have to be cooked to 125 degrees.
2. Chill It Right
Protect meat before it hits the grill, advises Jeff Nelken, a food-safety expert and coach who works with restaurants and the Los Angeles Health Department.
"Invest in a $3 or $4 thermometer for your refrigerator to make sure it's working at the right temperature," he says.
Bacteria multiply rapidly at 45-140 degrees, so set your fridge to 41 degrees or lower. And always store raw meat and poultry separately from foods that won't be cooked. Leave them on low shelves in the fridge, to prevent juices from spilling into other food.
Eggs can be carriers of foodborne illness, so handle them with care. Under new federal proposals, egg producers would be required to test regularly for salmonella, buy chicks from suppliers who do the same and keep eggs refrigerated on the farm and during shipment. (Only half of the egg industry currently takes these measures voluntarily.)
Here are some food safety steps to take at home:
- Buy refrigerated grade AA or A eggs with clean, uncracked shells and keep them in a refrigerator no warmer than 40 degrees.
- Use raw-shell (uncooked) eggs within five weeks of purchase and hardboiled eggs within one week of cooking.
- Avoid keeping raw or cooked eggs and foods containing eggs (like dough or potato salad) out of the refrigerator for more than two hours (including time for preparing and serving).
- Remember to wash eggs – even if you've just been handling the uncracked shell – since contamination is usually found on the shell. That's because an egg exits a hen's body through the same passageway as feces.
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3. Avoid Cross-Contamination
After Nestle recalled its cookie dough in 2009, the FDA advised people not to eat or even cook the dough. Cooking would have killed the bacteria, but getting dough on your hands or kitchen counters would still be dangerous.
Surfaces you cook and cut on can harbor bacteria from contaminated food. To avoid cross-contamination, keep raw and cooked meat separate.
Iowa State's Strohbehn, for example, carries the meat to the grill on a cutting board covered in wax paper. Then she tosses out the wax paper and carries the cooked meat back on the clean board (or you can use two plates). You can also:
- Designate specific platters, cutting boards and utensils for raw meat only.
Clean all hard surfaces that come into contact with raw meat. Use hot, soapy water or try a chlorine mixture of one tablespoon bleach to one gallon of water.
Buy new cutting boards when they develop cuts or grooves that are hard to clean. Bacteria will multiply in those areas.
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Also, disinfect sponges − which Nelken calls "bacteria traps" − in the dishwasher or a bleach solution at least every other day, and replace them every week or two. Sponges transport bacteria: Say you sponge off the plate that held raw chicken breasts. Then you wipe down your counter or a set of glasses and voila! The bacteria in the chicken is now smeared all over those surfaces.
4. Scrub Your Hands
The best food-safety tip: Wash your hands before cooking and eating. But "splash-and-dash" won't cut it, Strohbehn says. Wash your hands with antibacterial soap and lather for 15 seconds − sing a verse or two of your favorite song − before you rinse.
5. Wash Uncooked Food
Wash food you're working with, especially fresh produce - even the pre-washed kind, Strohbehn advises. "There are always certain levels of bacteria present on it."
The FDA advises washing produce thoroughly under running water just before eating and cutting away damaged or bruised areas.
That even includes vegetables you plan to peel. Firm produce, like melons and cucumbers, should be scrubbed with a produce brush, available at most grocery stores.
Although the FDA doesn't recommend washing produce with regular soap or detergents, special "produce washes" can be slightly more effective than water alone.
But you can save your pennies by using a vinegar or lemon juice spritz, followed by running water. To reduce bacteria even more, dry the produce with a clean cloth or paper towel. Here are more food safety techniques for produce:
- Buy unbruised and undamaged fresh produce (even if it's discounted). Bacteria thrive in those cracks and moist places.
If fruit is pre-cut (like a fruit salad or half a watermelon) make sure it's refrigerated or packed in ice.
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6. Understand Your Risk
Children under 9 years old, pregnant women, people with HIV or compromised immune systems and people older than 65 are vulnerable to complications from foodborne infections, such as severe dehydration, and may have to be hospitalized.
Pregnant women and the elderly should avoid packaged lunchmeats and egg dishes that might have runny undercooked yolks, Strohbehn says. And children should never drink unpasteurized apple juice or milk drinks on field trips to farms or county fairs.
Anyone at high risk should see a doctor if they suspect food poisoning, says Walid Alali, Ph.D, a professor at the Center for Food Safety at the University of Georgia.
Also, check the FDA's website frequently for warnings of outbreaks. And know that most foodborne illnesses can be prevented at home with a little common sense and good hygiene.
7. If You Still Get Sick, Know How to Respond
In most cases, foodborne infections go away in several days with a little R&R – rest and rehydration.
"Rehydration is critical when vomiting and diarrhea are involved," Beattie says. But don't overwhelm your system with liquid, which might make you vomit more. Sip water slowly but frequently.
You may want to reach for Imodium (loperamide hydrochloride), a drug to control diarrhea, but first speak to a doctor, the CDC says. Medications for diarrhea slow digestion, allowing bacteria to remain in your body longer and raising the risk of kidney infection.
Call your doctor if blood appears in your stool or if your diarrhea or fever lasts more than two days.
Antibiotics won't help E. coli infections. They may work for salmonella, but many strains have become resistant to them, says Alali.
If you believe you have a foodborne bacterial infection, alert your local health department, Nelken says. Officials may open an investigation, particularly if others have reported similar health issues.
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Garlic Superior to Antibiotics for Common Food-borne Illnesses
The dangers of indoor chemical pollution. Air "Fresheners".
Next to pharmaceuticals, nothing in recent years has been pushed harder upon us than the vast array of indoor chemical so-called air "fresheners" or room "deodorizers." These products include metered sprays, plug-ins, sticks, wicks, mists, aerosols, carpet "cleaners," scented candles and even scented stones. There's virtually no place in the American business world that not only has these "fresheners" in every bathroom, but they're also in lobbies, hallways, office spaces and, most frightening, nurseries worldwide.
Homeowners are seduced through clever advertising to ensure that as many rooms as possible have these "fresheners" circulating various chemical scents throughout the house. Gullible consumers can even extend this passion for perfumed air by installing "fresheners" in their cars, where a variety of chemically-induced scents fill the car's interior. Due to loopholes and favoritism regarding the chemical perfume industry, companies pushing these products aren't even required to list the ingredients of anything labeled as "fragrance." [1]
In no way, shape or form does a chemically-scented fragrance and/or aerosols propelled by butane, propane or other toxins create an indoor environment of fresh air. Chemical "deodorizers" or chemical air "fresheners" only mask other odors. These products do absolutely nothing to improve the quality of indoor air, and in fact, can contribute to a host of ailments from headaches, high pulse rate and nausea; to mention a few.
Reports of the dangers of chemical air "fresheners" are just beginning to make the news. A recent MSN article stated that being exposed to air "freshener" chemicals as little as once a week can increase your odds of developing asthma symptoms as much as 71 percent and can contribute to an increased risk of a number of pulmonary diseases. [2] The article went on to state that "A 2006 study showed that people with high blood levels of the chemical 1.4 dichlorobenzene - commonly found in air fresheners - were more likely to experience a decline in lung function."
A September 2007 TIME magazine article, 'How "Fresh" is Air Freshener' reported that the Natural Resources Defense Council (NRDC) discovered that most chemical air "fresheners" contained variable amounts of substances called phthalates (pronounced THAL-ates). Besides the use of phthalates used as sealants and adhesives and to soften plastics, they are also used to dissolve and carry fragrances. The TIME article went on to report that "phthalates are commonly found in a variety of products, including cosmetics, paints, nail polish and children's toys - and have long been at the center of a larger international controversy over their health effects." [3]
The U.S. Food and Drug Administration (FDA) has no regulations on the use of phthalates, does not require the labeling of phthalates content on products and does not consider the quantities to which people are exposed to be harmful, even though studies have suggested that high exposure to certain kinds of phthalates can cause cancer, developmental and sex-hormone abnormalities in infants, and can affect fertility. [4]
The chemical ingredients in "deodorizers" – or anything else dealing with chemicals – can be found on the product's Material Safety Data Sheet (MSDS). Let's look at several popular chemical so-called "deodorizers" and air "fresheners" :
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Metered Aerosol Sprays
The biggest overuse of chemical air "fresheners" is the boom in metered "deodorizers" that has resulted in hundreds of thousands of chemical spray dispensers being placed in workplaces throughout America. These dispensers typically hold 7-ounce aerosol cans, range in dozens of chemical "fragrances," and the estimated 3,400 - 3,900 metered sprays per can are triggered by battery-operated automatic aerosol dispenser units several times an hour.
Just what are these chemical spray mists that we're subjected to by aggressive sales people and unsuspecting employers? You'll notice a "CAS" number following each chemical name. CAS is an abbreviation for "Chemical Abstracts Service," a uniform number given most chemicals in the chemical industry. Let's look at some of the distributors and ingredients of several metered aerosol products:
Peach, Product # 465, Big D Industries, Oklahoma City, OK, 73148 1-800-654-4752 Ingredients: Acetone (CAS # 67-64-1); Liquefied Petroleum Gas (CAS # 68476-85-7); Fragrance (no CAS #). The label states, "Strong drafts of forced air or wind will remove the effectiveness of the deodorant..." In other words, one is to assume, keep it confined. Compare that with the warning on this next one:
Clean & Fresh, Time Mist, Waterbury Companies, Inc., P.O. Box 1812, Waterbury, CT, 06722 985-878-6751. Ingredients: Acetone (CAS # 67-64-1); Diethylene Glycol Monoethyl Ether (CAS # 111-90-0); Propane (CAS # 74-98-6); Perfume (CAS # N/A); and C8-C9 Isoparaffinic Hydrocarbons (CAS # 64742-48-9) "Excessive inhalation in confined areas may cause headaches or dizziness."
Tropical Trade Winds, Health Gards (can you believe the audacity of such a brand name?) HOSPECO, Cleveland, OH 44143, 440-720-1800. Ingredients: Petroleum distillate, aliphatic (CAS # 64742-47-8); Ethanol (CAS # 64-17-5); Propane (CAS # 74-98-6); Butane (CAS # 106-97-8); Isobutane (CAS # 75-28-5). "Just remove the cap and hand spray to prime the area." "Deliberately ... inhaling the vapor of the contents may be harmful or fatal."
Cinnascent Time Mist, Pelican Brand, Long's Preferred Products, Inc., 2630 Broadway, Alexandria, LA, 71302, 800-444-6373 Ingredients: Acetone (CAS # 67-64-1); Fragrance (N/A); Propane (CAS # 74-98-6); Butane (CAS # 106-97-8) "Avoid inhaling spray mist or vapor."
There's a good reason for these warnings. Acetone - the primary chemical in most of these products - and Propane are classified as cardiovascular or blood toxicants, gastrointestinal or liver toxicants, kidney toxicants, neurotoxicants, respiratory toxicants and a skin or sense organ toxicants. [5] Butane is classified as a neurotoxicant, which means that exposure can cause adverse effects on the central nervous system. [6] Furthermore, regarding Acetone, Spectrum Chemical, a top chemical listings service, warns that "The most probable human exposure would be occupational (workplace) exposure, which may occur through inhalation." [7]
Isoparaffinic and Aliphatic Hydrocarbons are classified as toxic. [8] Also, since hydrocarbons are chemical compounds containing only hydrogen and carbon, they literally suffocate oxygen in the bloodstream. [9]
Remember this the next time you inhale the fumes from one of those liquid or solid chemical air "fresheners," or when one of these timed dispensers spits a fine mist over your head while you're in a rest room, physician's waiting room, picking up your child at day care, and yes - despite the label's warning - where they might be installed in restaurant dining areas.
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Scented Oils
Glade Plug-Ins Manufacturer: S.C. Johnson & Sons, Racine, Wisconsin. Ingredients: "Amorphous Fumed Silica, Fragrance." Regulatory information: "All ingredients in this product are listed or excluded on the U.S. Toxic Substances Control Act (TSCA) Chemical Substance Inventory."
Regarding "Amorphous Fumed Silica," OSHA states that overexposure to respirable crystalline silica can cause silicosis, a "disabling, non reversible and fatal lung disease." Amorphous is defined as being shapeless, or to lack form; and fumed, of course, is to emit fumes. And since "fragrance" can mean anything, S.C. Johnson is clearly taking advantage of the exclusion clause of the TSCA to push its product, regardless of whatever health hazards that may result from use of it.
Glade Car Scented Oil Manufacturer: S.C. Johnson & Sons, Racine, Wisconsin. Ingredient(s): "Mixture of perfume oils." Exposure limit/toxicity: Not established. Inhalation Health Hazards Identification: "Irritation to nose, throat and respiratory tract." First Aid Measures: "Remove to fresh air."
S.C. Johnson & Sons won't even list the "mixture of perfume oils" ingredients. The product is designed to attach to your car's dashboard air vent, enabling the fumes to circulate throughout your car. So when Little Johnnie is being driven home after breathing hazardous chemicals in his day care all day, your child can be polluted further with an additional dose of perfumed poison. The MSDS of Glade Care Scented Oil warns that "Irritation to nose, throat and respiratory tract" is a possible health hazard. Presumably, then, you're supposed to hold your breath as you drive while using this product.
Air Wick Scented Oil Manufacturer: Reckitt Benckiser, Inc., Wayne, N.J. "Scented oil is used in an adjustable plug-in air freshener unit." Ingredients: "Proprietary fragrance oils."
Again, "fragrance oils." Yet because of special privileges and loopholes granted to the chemical industry in regards to perfumes and fragrances, Air Wick is not required to disclose the "proprietary fragrance oils" ingredients.
* * *
Carpet "Deodorizers"
Carpet Fresh Carpet Refresher Manufacturer: WD-40, 1061 Cudahy Place, San Diego, CA, 92110. 800-448-9340. The product is a white powder that is sprinkled onto carpeting, then vacuumed up. Ingredients: Fragrance oil. CAS number: Not established. Hazard data: Not established. Effects of inhalation overexposure: Possible mild mucous irritation. First Aid Procedure: Remove to fresh air.
If "Fragrance oil" is the only ingredient listed, then what is the white powder? What is WD-40 concealing, and why would a product that's listed as a "refresher" possibly cause a consumer to have to be removed from it to fresh air? Perhaps the following will provide a clue:
Carpet Fresh No-Vacuum Carpet Refresher Manufacturer: WD-40. Ingredients: Liquefied petroleum gas (CAS # 68476-85-7), Isopropanol (CAS # 67-63-0). "Inhalation: No adverse effects experienced in an otherwise healthy individual exposed to this product during normal use. Excessive inhalation can cause headache, drowsiness, nausea and lack of coordination."
"Otherwise healthy individual." "Normal use." Just don't stay in a motel with a frail parent or with an infant where this product was used (or, more commonly, overused by housekeepers).
OSHA has classified liquefied petroleum gas as an asphyxiant (a chemical - gas or vapor - that can cause death or unconsciousness by suffocation) and a narcosis (a stupor or unconsciousness produced by exposure to a chemical). And like other chemicals listed on this page, isopropanol is classified as a cardiovascular or blood toxicant, a developmental toxicant, an endocrine (glands) toxicant, a gastrointestina or liver toxicant, a neurotoxicant, a reproductive toxicant, a respiratory toxicant and a skin or sense organ toxicant. [8]
Arm & Hammer Foam Carpet Deodorizer Manufacturer: Arm & Hammer (No Address or phone number found on its website.) The product comes in a 16-oz. can that sprays out as a foam onto the carpet, and once dried, it's vaccumed up. Although this product is available at practically any retail store such as Wal-Mart for consumers to buy and use in their homes, an Arm & Hammer spokeswoman explained that the company only sends out MSDS's to businesses, not "individuals." The spokeswoman did, however, read over the phone the three ingredients listed on the carpet deodorizer. These ingredients are "Fragrance, surfactants and baking soda."
Again - and again - fragrance can mean anything. While baking soda is certainly a safe product, surfactants are, as the spokeswoman explained, "a detergent compound." Arm & Hammer's Foam Carpet Deodorizer is simply another perfumed mask to counter foul-smelling carpeting with dangerous chemicals that Arm & Hammer wishes to conceal from "individual" consumers.
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These are just a handful of several of the most popular "deodorizers" available practically anywhere. Learn what these products are; read the labels; access their MSDS's. Educate yourself on the effects these chemicals have on yourself, your family and on others.
Furthermore, once these products are used, the empty containers are tossed in the trash, which makes their way to landfills, where they're crushed. Undoubtedly, residue from them leak into the ground water, and to water treatment plants, which aren't equiped to filter these chemicals. Thus, the chemical pollution to our drinking, cooking and bath water is another serious side effect from these products.
Sources:
- www.ewg.org, 'Scented Secrets'
- 'Air Fresheners: Are they bad for my Heath?' by Andrew Weil, M.D, 'Prevention,' October 2008, http://health.msn.com/health-topics/cancer/articlepage.aspx?cp-documentid=100216588>1=31024
www.scorecard.org, Acetone
- TIME, 24 September 2007, 'How "Fresh" is Air Freshener?"
http://www.time.com/time/health/article/0,8599,1664954,00.html
- Ibid
- www.scorecard.org, Propane
- www.spectrumchemical.com, Acetone MSDS
- www.petroferm.com, MSDS; www.nationaldiagnostics.com, MSDS
- www.books.google.com 'Hazardous Materials & Waste Management,' Nicholas P. Cheremisinoff, p. 138
- www.scorecard.org, isopropanol
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http://www.silentmenace.com/
8 Ways to Freshen Your Indoor Air Naturally
Okay, let's keep it real: it's great that it's a fresh New Year. But lots of us are stuck inside for the next three months thanks to freezing temperatures. And that means we're stuck with indoor smells: pets, kids, cooking, laundry, basements and other stale stuff.
That's why we crave a nice scent that says our house is clean and in order. To get that wonderful fragrance, it's easy to buy all kinds of air fresheners in the supermarket. Fresheners that sit on the counter, stick on walls, plug into outlets or mist the air.
But here at all natural True Citrus, we're concerned about products with lots of chemicals. And it turns out there's good reason to be concerned. Did you know that "use of air fresheners and aerosols is associated with more diarrhea and earache in babies, and more headaches and depression in mothers"?
Those facts are from a long-term health research project by the University of Bristol, which has followed the health of 14,000 children since before birth.
But how could air fresheners cause headaches and other illnesses?
According to the Environmental Protection agency: "there are four basic ingredients in air fresheners: formaldehyde, petroleum distillates, p-dichlorobenzene, and aerosol propellants. Air fresheners are usually highly flammable and also strong irritants to eyes, skin, and throat. Additionally, the solid fresheners usually cause death if eaten by people or pets."
The dichlorobenzene that many air fresheners contain is one of the active ingredients in mothballs. The EPA's air quality guide lists this chemical as toxic because it can affect respiratory function.
In 2007 the National Resource Defense Council tested 14 different air fresheners and found many had chemicals like phthalates, which can cause developmental and hormonal/reproductive problems.
Air fresheners can also be dangerous in another way. Cancer-causing formaldehyde, as well as several other oxygenated pollutants are created when certain elements in air fresheners are exposed to ozone. And ozone happens to be found indoors at levels up to about 50 percent of outdoor levels.
In short, we Americans are spending more than $1 billion a year on air fresheners that that may be bad for our health. So if you're ready to dump fake freshness and make a healthy change, here's how:
- Open windows once in a while.
- Be sure to take out the garbage often.
- Burn all natural beeswax candles with cotton wicks, which help remove pollution from the air (and supports local bee keepers!).
- Keep potted plants inside to clean the air. Basil, mint and thyme can be grown indoors year-round. These naturally fragrant herbs will help clear the air.
- Simmer cinnamon and cloves, fresh ginger, or herbs in water on the stovetop, or simmer water with a few drops of a pure essential oil.
- Use natural sachets, potpourris and pomanders.
- Put an open box of baking soda where it smells.
- Ground coffee can also be used to absorb odors. Grind (or use whole beans) and put into an old sock or stocking. Or leave a bowl of grinds out in the area that smells.
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It may be a long winter ahead, so let's keep it healthy while we're stuck inside!
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The advantages of cover crops
By Nora Cleland
Parson, Kansas — Cover crops offer several potential benefits for farmers but careful planning to achieve the desired goals is a must, Kansas State University Research and Extension Service crop specialists told a group of Northeast Central Kansas farmers recently at a meeting in Baldwin, Kansas.
No-till farmers are increasing the use of cover crops, and agricultural Extension services are conducting extensive crop research to help farmers profitably include cover crop plantings into their crop rotations.
Kraig Roozebaum, K-State Extension specialist in cropping systems, listed a large number of potential benefits for seeding cover crops:
- Improve soil quality
- Increase organic matter
- Reduce soil erosion
- Reduce soil compaction
- Supply nitrogen
- Increase water infiltration
- Decrease run-off
- Suppress weeds
- Compliance with EQUIP program requirements
- Conserve soil moisture
- Reduce nitrate leeching
- Increase yields o the following crops
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"Obviously, no one cover crop is going to accomplish all of those goals, or even a majority of them," Roozebaum said. "It's up to you to study the situation in your fields and decide what you want to accomplish because each of the specific potential benefits requires a different seeding program. Next you need to plan the specific planting time, the specific type of cover crop, and the specific harvest method and time to end the cover crop."
Roozebaum said farmers also should consider the challenges of cover crops– expense and the extra time in the field required.
"You have to weigh carefully both the short term and long term benefits of a cover crop against the expenses and the extra time required," he explained.
Dave Mengel, Extension specialist in soil fertility and crop production, said that while cover crops can be grown for several purposes, they fall into three main categories–nitrogen trap crops, sources of cover and residue and sources of nitrogen.
For trap crops the use of fast-growing nitrogen-demanding crops are ideal. He suggested summer crops such as "millet or forage sorghum for planting in the summer after wheat or cereal rye, wheat, triticale or canola in the fall after summer crops.
"Most trap crops also are well suited as residue cover sources, but remember the rate of residue decomposition can be controlled to some extent by selecting a cover crop with high carbon and low nitrogen residue such as forage sorghum, millet or cereal rye and let it become fairly mature in a nitrogen deficient environment," Mengel continued. "Adding nitrogen or terminating the crop early to lower the carbon/nitrogen ratio will speed up the decomposition of the residue."
He said the key thing to remember is that trap crops will use the soil nitrogen taken up to support their growth. "In most cases trap crops will have a wide carbon/nitrogen ratio, so the release of the nitrogen to subsequent crops may be slow. In fact it may be the second or third crop grown that actually benefits from the trapped nitrogen. The good thing is that the trapped nitrogen is not available to move through the soil to contaminate ground water."
Roozebaum showed extensive data and photographs of cover crop trials conducted on no-till cropping fields near Manhattan following a wheat crop harvest. The rotation pattern for the fields was wheat, cover crop, sorghum, then soybeans.
He gave a snapshot summary of some of the cover crop characteristics. Sorghum-sudan did a "good job of weed suppression and yielded 7,820 pounds of biomass per acre. The double crop soybean planting yielded 20 bushels of soybeans per acre. It's important to plant a short season soybean seed for the cover crop planting because the growing season is short. The sorghum-sudan and second crop soybeans had the same amount of nitrogen tied up in the residue."
He said the pearl millet plots yielded good grazing. The buckwheat cover crop provided a good canopy over the field, suppressing weed growth and was especially good for a short growing season.
The cover crop yielding the most biomass with the highest nitrogen content was a millet/sunnhemp/cowpea mixture.
In all of the plots grain sorghum was planted following the cover crops.
The cost of the various cover crop seedings ranged from $10 to $90 an acre. Also to be considered if the cover crop is to be terminated with a chemical burn is the cost of glyphosate at $3 to $6 an acre.
Mengel told the group that selecting cover crops to increase nitrogen levels in the soil is probably not realistic in most cases.
"Actually most of us should be interested in weed suppression," Mengel said. "We need to think carefully about our objectives for the cover crop. Cover crops, including legumes, routinely trap nitrogen but don't release it quickly if the carbon/nitrogen ratio in the biomass is greater than 25 to 1. Remember that organic matter mineralizes at a rate of around two percent per year primarily March through December. Soybeans for instance, with a C/N ratio of about 18:1 release nitrogen much more rapidly than corn stalks with a C/N ratio of 60:1. Corn residue leaves considerably more nitrogen than soybeans but the corn stalks break down much more slowly–it takes two to three years for the nitrogen from corn residue to enter the soil while soybean residue breaks down immediately over just a short year."
"If you want to grow cover crops to supplement nitrogen for future cereal or forages, legumes are the first preference," Mengel said. "Remember the carbon-nitrogen ratio still applies when determining how quickly the fixed nitrogen will be available for subsequent crops. Fine textured, low carbon-nitrogen plants, such as alfalfa, clover, soybeans or peas will decompose much more quickly releasing nitrogen much more rapidly than coarse textured plants with wide carbon to nitrogen ratios such as sorghum, millet or mature sunn hemp."
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Crimson Clover Cover Crop
Radishes – A New Cover Crop for Organic Farming Systems
Dr. Joel Gruver, Western Illinois University
Dr. Ray R. Weil, University of Maryland
Charles White, Penn State University
Dr. Yvonne Lawley, University of Manitoba
Over the past decade, radishes have been redefined; once known almost exclusively as a pungent vegetable, radishes have recently gained recognition for their cover cropping potential. After reading this article, you'll be able to make an informed decision about whether cover crop radishes are worth a try on your farm.
Radishes have made rapid inroads as a cover crop for several reasons. First, the radish phenotype is well suited to perform many valuable cover crop functions—provide soil cover, scavenge nutrients, suppress weeds, and alleviate compaction—while creating few of the residue management challenges associated with many other cover crops. Second, recent research including many on-farm trials has documented beneficial effects of radish cover crops on soil properties and subsequent crops. Third, the seed industry has ramped up production of radish seed, brought new branded products to market, and promoted radish as a cover crop. Fourth—but perhaps most important in terms of the exponential growth in interest by farmers—radish cover crops have become a hot topic of discussion in rural coffee shops and on-line agricultural forums. Between 10/1/2011 and 12/1/2011, there were 51 threads about radishes in the Crop Talk forum of New Ag Talk, with over 500 responses and more than 240,000 views.
Radish Seedstock
Most of the radish varieties currently marketed for cover cropping (e.g., GroundHog radish™, Nitro radish, Sodbuster, and Bio-till radish) are large rooted selections of daikon-type oilseed or forage radishes, but are not the product of formal breeding programs. All are morphologically similar to the large white daikon radishes traditionally used in Asian cooking. Hybrid daikon-type culinary radish seed is prohibitively expensive (more than $100/lb for bulk seed) for use in cover cropping, but open pollinated culinary daikon varieties may have some potential with bulk seed available for about $5/lb. Standard oilseed radish cultivars (e.g., Adagio, Colonel, and Defender) tend to have a stubbier, more branched taproot, greater winter hardiness, and lower seed cost than larger-rooted daikon types (Ngouajio and Mutch, 2004).
There are currently 2 radish varieties marketed for cover cropping with certified genetics - Graza and Tillage Radish®. Graza from Pyne Gould Guinness Seeds (PGG, Ltd.) in New Zealand was developed over 17 years through a complex series of crosses of 3 species—garden radish (Raphanus sativus), cabbage (Brassica oleracea), and perennial seaside radish (Raphanus maritimus). The breeding program selected for smooth leaves, ability to recover from multiple grazings, and resistance to bolting. Graza will grow vegetatively for an extended period when spring planted unlike most other cover crop radishes. Compared to rape and forage turnips, Graza radishes have greater ability to respond to high fertility and build up larger root reserves, providing more resilience under difficult conditions (Stewart and Moorhead, 2004). Tillage Radish®, officially known as Variety CCS-779 received U.S. Plant Variety Protection status in June 2012. Unauthorized propagation of Graza and Tillage Radish® for seed production is strictly prohibited.
All radishes are insect pollinated and cross-pollinate easily, increasing the likelihood of genetic variability if not grown in strict isolation. In recent years, some farmers who purchased inexpensive radish seed have reported high levels of variability including early bolting.
In response to the growing interest in radishes for cover cropping, some public and private breeding programs are starting to select for radishes with superior cover crop attributes. More research is needed comparing radish varieties with respect to traits such as winter-hardiness, hard-seededness, seedling vigor, nutrient scavenging, root penetration strength, and biofumigation potential.
The information that follows should be generally applicable to all radish cultivars used for cover cropping unless otherwise noted. In addition, literature discussing other cool season annual brassica cover crops (e.g., a bulletin on the use of mustards as a biofumigant) may contain information that is relevant to managing radishes as a cover crop.
Benefits of Radish Cover Crops
Effects on Soil Structure
The radish attribute that has captured the most farmer interest is their robust rooting ability. Under favorable growing conditions, radish roots can extend more than 3 feet deep in 60 days, with the thickened storage portion of the root (commonly refered to as the tuber, though not botanically correct) extending more than 12 inches. Plants with roots more than 1 inch in diameter normally have a significant portion of the root exposed above ground (often more than 4 inches, even in uncompacted soils) (Fig. 1).
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Figure 1. Typical above ground growth of the storage root after 60 days. Photo credit: Joel Gruver, Western Illinois University. |
After radishes winter-kill and their large fleshy roots desiccate, the channels created by the roots tend to remain open at the soil surface, improving infiltration, surface drainage, and soil warming (Fig. 2). Radish rooting effects on soil porosity also extend into the subsoil. This general process called bio-drilling, can improve root growth by subsequent crops and access to subsoil moisture resulting in greater resilience under drought conditions (Chen and Weil, 2010).
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Figure 2. Radish holes after winterkill. Photo credit: Joel Gruver, Western Illinois University. |
Research at the University of Maryland has shown that radish roots have greater ability to penetrate compacted soil than cereal rye and rapeseed (Chen and Weil, 2010). Subsequent research found twice as many corn roots penetrated compacted subsoil after radish cover cropping as compared to cereal rye, with both cover crops promoting more rooting than bare-fallow (Fig. 3). These results suggest that radishes may be useful as a biological alternative to deep ripping and other mechanical methods of alleviating soil compaction.
Some farmers and researchers are currently evaluating bio-strip-till strategies which involve targeted fall planting of radishes on the wide rows (e.g., 30") where a subsequent cash crop will be planted the next spring. This approach reduces seed cost and may maximize crop utilization of radish root channels but requires precise equipment guidance in the field. More information about bio-strip-till planting methods is contained in the section on seeding.
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Figure 3. Enhanced corn and soybean root density following radish as compared to rye and no cover. Figure credit: Guihua Chen, University of Maryland. |
Effects on Weeds
A good stand of radishes can eliminate nearly all weed growth both during and for some time after active radish growth (Fig. 4). To obtain near-complete weed suppression, radishes should be planted early (6 or more weeks before frost), at a relatively high population (more than 5 plants per square foot) into a clean seed bed. Weed suppression from fall planted radishes typically lasts into April, but does not extend much into the summer cropping season.
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Figure 4. Near-complete suppression of weeds in April (Hayden Farm, Beltsville, MD). Photo credit: Yvonne Lawley, University of Manitoba. |
Recent research at the University of Maryland investigated the mechanisms through which radishes provide weed suppression. Over ten site-years, they found that radishes provided complete suppression of winter annual weeds in the fall and early spring but the suppression did not persist into the summer crop. Controlled environment bioassays involving cover crop amended soil, aqueous plant extracts, and aqueous soil extracts along with a field experiment involving planted weed seeds did NOT provide evidence of allelopathy. In a residue moving experiment, no differences in spring weed suppression were observed if radish residues were removed prior to a killing frost in November or left in place to decompose (3 out of 4 site-years). These results were supported by planting date experiments where fall ground cover and spring weed suppression was greatest for the earliest radish planting dates. The University of Maryland researchers concluded that rapid and competitive fall growth, rather than allelopathy, is the primary mechanism of weed suppression by radishes (Lawley et al., 2011).
Effects on Seed Bed Preparation
After winter-kill (or other causes of mortality), radish residues deteriorate rapidly. As a result, fall biomass production is unlikely to interfere with spring field work. Typically a good stand of winter-killed radishes leaves the soil surface weed free and perforated with open root holes in early spring. As a result, the soil warms up and dries out faster than soils covered by either winter weeds or a growing cover crop and is conducive to earlier spring planting (Fig. 5).
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Figure 5. Warmer and drier seedbed in April with forage radish compared to rye as cover crop. Figure credit: Charlie White, Penn State University. |
Effects on Nitrate Leaching
Because of their deep root system, rapid root extension, and heavy N feeding, radishes are excellent scavengers of residual N following summer crops (Fig. 6). Radishes take up N from both the topsoil and from deeper soil layers, storing the N in their shoot and root biomass. With favorable fall growing conditions, radishes typically take up more than 100 lb/ac of N. Much higher amounts of N may be acquired when N is abundant—for example, when a drought-stricken summer crop has failed to utilize much of the available N, when a field has a long history of manure applications, when a mature hay field has been plowed out, or when fertilizer has been applied to promote growth of the cover crop. Early planting promotes high biomass production and associated nutrient accumulation but research at the University of Maryland has shown that late planted radishes can still take up substantial quantities of N despite low biomass production due to shifts in plant C:N ratio (Dean and Weil, 2009).
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Figure 6. Scavenging of soil nitrate by radish. Figure credit: Ray Weil, University of Maryland. |
Effects on Early Spring Nitrogen
Unlike cereal rye and other small grains whose residues decompose slowly and continue to immobilize N for an extended period, radish residues decompose and release N rapidly (Fig. 7). Timely crop establishment following radishes can result in an early boost in growth and N uptake similar to following a legume cover crop or N fertilizer application. In contrast, if planting is delayed (e.g., northern locations) and weather/soil conditions are conducive to leaching or denitrification, the availability of N scavenged by radishes to subsequent crops may be limited. Research at the University of Maryland found that early planting of spring crops following radish was more important on sandy soils than finer textured soils (Kremen, 2006). More research is needed to identify strategies for optimizing recycling of the N scavenged by radish cover crops (e.g., combining radishes with winter-hardy cover crop species).
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Figure 7. Spring release of N from radish residues (FR = following radish, NC = no cover). Figure credit: Ray Weil and Amy Kremen, University of Maryland. |
Effects on Soil Phosphorus and Potassium
Radishes are excellent accumulators of P and K (root dry matter commonly contains more than 0.5% P and 4% K), and elevated levels of soil test P have been measured following radish cover cropping, particularly within 1–1.5 inches of radish root holes (White and Weil, 2011). Despite radish being a non-host of mycorrhizal fungi, mycorrhizal colonization of corn following radish does not appear to be suppressed (White and Weil, 2010).
Effects on Soil Erosion and Runoff
Radishes grow rapidly when planted in late summer or early fall and 10 lb/ac drilled on 7.5-inch rows can provide full canopy closure in about three weeks. This canopy intercepts rain drops minimizing surface impact and detachment of soil particles. Even after radishes are killed by a hard freeze, a layer of decomposing residue remains on the soil surface throughout the winter and into the early spring providing erosion control. In addition, runoff and sediment transport are reduced because of the rapid infiltration facilitated by open root holes. These holes can capture run-off and sediment before it leaves the field. For more complete protection against erosion, radish can be mixed with other cover crops that are winter hardy (e.g., cereal rye) or winter kill but leave more persistent residue cover (e.g., oats).
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Figure 8. Impact of radish on soil loss. Figure credit: Ray Weil, University of Maryland. |
Effects on Soil Organic Matter
Total dry matter production by radish cover crops can exceed 3.5 tons/ac (5000 lb/ac aboveground and 2,000 lb/ac below ground) after 2 months with favorable growing conditions (1.1 lb fresh weight per square foot at 90% moisture = 5000 lb/ac dry matter). It is important to keep in mind however that radish biomass is highly decomposable and increases in total soil organic matter (SOM) levels following radish cover crops are unlikely. More sensitive measures of SOM (e.g., microbial biomass C and particulate organic matter) may be able to detect changes in SOM resulting from radish cover cropping but little evidence has been reported to date.
Effects on Nematodes
Laboratory bioassays have shown that the residues of radishes and many other cover crops reduce the survival of plant parasitic nematodes such as root knot nematodes (Meloidogyne incognita) and soybean cyst nematodes (Heterodera glycines) compared to unamended controls. Unfortunately these effects are much less consistent in the field but some significant effects of radish have been reported.
In eastern Texas, researchers recently evaluated the effect of incorporating a wide variety of brassicas (Florida Broadleaf, Southern Giant, and Bionute White mustards, Graza radish, Purple Top turnip, Vates collards, and Dwarf Blue kale) 58 days before planting sweet potatoes. Graza reduced populations of root knot nematode more than all other treatments and also resulted in fewer ring nematodes at harvest than in the plots with no cover. In addition, ring nematode reproduction rate was lower in Graza plots than all other treatments (Steddom et al., 2008).
Radish cover crops have also been found to have some positive effects on beneficial nematodes. Research at the University of Maryland found that the winter-kill of N-rich radishes activated bacteria feeding nematodes in the early spring creating opportunities for rapid cycling of organic N (Gruver et al., 2010).
Effects on Crop Yields
On-farm comparisons and limited replicated trials in Maryland, Ohio, Pennsylvania, and Illinois (Fig. 9) have reported significant increases in corn and soybean yields following radishes as compared to fallow or other cover crops. These yield increases are likely the combined result of multiple effects described above.
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Figure 9. Impact of 3 cover crop systems: volunteer oats (O), volunteer oats with radishes planted on 30-inch rows (PRO) and volunteer oats with radishes drilled on 7.5-inch rows (DRO) on the relative yield of a following corn crop. Corn yields were not significantly different with radishes drilled at the two different row widths (a=0.05), but corn yields with radishes at both row widths were significantly greater than with oats alone. Figure credit: Joel Gruver, Western Illinois University. |
Management of Cover Crop Radishes
Seeding
Good stands of radishes can be established by drilling 6–10 lb/ac or broadcasting at 8-12 lb/ac. When using a drill, seed should be placed ½–1 inch deep. When broadcasting, establishment is enhanced by culti-packing or light tillage. Aerial seeding has been successful using 10–16 lb/ac broadcast into standing corn and soybean canopies when soil surface moisture was favorable for germination for several days. It is important that the seedlings quickly have access to light so aerial seeding should not occur until the crop begins to senesce (~50% yellowing of lower leaves) and early harvest also improves growth. Mixing radish seed with other cover crop species (e.g., oats, annual ryegrass and/or crimson clover) can improve seed distribution and stand establishment and reduce total seed cost.
There is growing Interest in planting radishes on wider row spacings, often in combination with other cover crop species. This can be accomplished by blocking off rows in a drill or using a planter with appropriate plates or another seed metering system appropriate for radish seed.
Establishing radishes with a planter has particular appeal because many farmers have wider planters than drills, seed spacing is more controlled than with a drill and lower seeding rates can be used. Specific planter plate recommendations are summarized in the following table (Table 1).
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Table 1. Recommended planter plates for cover crop radish.
Planter |
Plate |
White |
60-cell sugar beet |
Deere |
small sugar beet 4/64 inch |
Case-IH |
sugar beet |
Kinze 2000 and 3000 series |
small 60-cell milo |
Kinze Edge Vac w/ e-sets |
60-cell small sugar beet 1/16 inch |
Monosem |
6020 plate; vacuum set to 15 |
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Radishes germinate rapidly, emerging within 3–4 days when environmental conditions are favorable. Seed broadcast on the surface can establish well if seeding is followed by a timely rain or irrigation. Radishes have a very flexible and aggressive growth habit and will spread out in a rosette to fill available space. Radish plants (roots and shoots) grow much larger at lower plant densities but it is not clear that giant specimens (e.g., greater than 3-inch diameter roots) have any advantage over good stands of radishes with 1-inch diameter roots (Fig. 10).
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Figure 10. Typical radishes after about 60 days of growth with abundant water and nutrients—much larger radishes are possible but have more value at the county fair than in your fields. Photo credit: Joel Gruver, Western Illinois University. |
Radishes grow best when planted early enough to allow 6 weeks of growth before regular frosts. Later-planted radishes tend to be more cold-hardy and less likely to winter-kill. When planted in the spring, most radishes bolt quickly producing much less root and shoot biomass than fall plantings.
Winter Hardiness
Radishes are tolerant of light frosts but generally show injury when temperatures drop below the mid-20s. In regions where winter temperatures regularly drop below 20 F, radishes normally winterkill but it should be noted that overwintering was reported at some northern locations in 2010 and 2012, likely due to early and persistent snowcover and unusually mild winter conditions, respectively. Young radishes in the rosette growth stage are more winter hardy than radishes that have developed a sizable storage root.
Crop Rotations
Radishes fit well following small grains, corn silage, and early harvested vegetable crops (e.g., sweet corn) that allow cover crop planting before September 1. Later plantings can scavenge significant amounts of N but may accomplish little biodrilling or weed suppression. Nutrients scavenged by radishes are released rapidly making radishes a good fit ahead of early planted crops with high nutrient requirements. Caution should be taken when adding radishes to rotations that already include brassicas.
Cover Crop Mixtures
Many farmers and researchers are experimenting with cover crop mixtures that combine radish with other cover crops that fix N, provide more persistent residues or simply have cheaper seed. As a general rule, radish rates should be cut by at least 50% when included in cover crop mixtures because of their capacity to out compete other species.
An alternative method of managing radish competition in mixtures is to plant separate rows of radishes and companion species (Fig. 11). This can be accomplished by blocking off or compartmentalizing the rows in the seed boxes of a grain drill or by attaching an additional seed metering/distribution system (e.g., Valmar airflo or Gandy Orbit-air). In addition, some farmers are using split-row planters to plant alternating rows of radish and companion species on 15-inch spacing or planting twice on 30" rows with a 15-inch off-set using GPS guidance.
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Figure 11. Alternating 15-inch rows of radish and oats. Photo credit: Joel Gruver, Western Illinois University. |
Spring oats and sorghum-Sudangrass (Sudex) compete well with radish and provide longer lasting residues to immobilize some of the N released from radish residues in the spring. These additional residues may also help maintain soil moisture, reduce weed growth, and reduce erosion during the next growing season. When cereal rye is mixed with radish, the rye overwinters and scavenges N released by the decomposing radish. Hairy vetch is a winter-hardy legume that has also performed well interseeded with radish (both mixed and in separate rows).
Potential Problems
Radishes have little tolerance of wet soils, so planting in fields that collect standing water or are prone to prolonged wetness should be avoided. Enhanced growth directly over tile lines is common (Fig. 12) and plugging of tile lines has been reported but appears to be a rare occurrence.
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Figure 12. Larger radishes over a tile line on a farm in Western IL. Photo credit: Mike Roegge, University of Illinois Extension. |
Radishes are very responsive to N, and N deficiency limits their ability to compete with weeds, grow through compacted soil, and perform other potential functions. Nitrogen deficiencies have been observed when planting after silage- or grain corn on sandy soils or on soils that do not have a history of manure application. N deficiencies are also likely when excessively high populations are established.
Radishes are only moderately cold hardy and need about 6 weeks of favorable growing conditions to produce sufficient biomass to achieve most potential benefits.
Lastly, be forewarned that rotting radish residues produce a powerful rotten egg-like odor, particularly during winter thaws.
Summary
Radishes have much potential to perform valuable functions within organic cropping systems. Realization of this potential depends upon timely establishment, favorable environmental conditions, and adequate fertility. As described in this article, a solid research foundation supports the value of radishes as a cover crop but farmer innovation is needed to fine-tune strategies for integrating radishes in specific organic cropping systems.
References and Citations
Chen, G., and R. R. Weil. 2010. Penetration of cover crop roots through compacted soils. Plant and Soil 331: 31–43. (Available online at: http://dx.doi.org/10.1007/s11104-009-0223-7) (verified 21 Feb 2011).
Dean, J. E., and R. R. Weil. 2009. Brassica cover crops for nitrogen retention in the Mid-Atlantic coastal plain. Journal of Environmental Quality 38: 520–528. (Available online at: http://dx.doi.org/10.2134/jeq2008.0066) (verified 21 Feb 2011).
Gruver, L. S., R. R. Weil, I. A. Zasada, S. Sardanelli, and B. Momen. 2010. Brassicaceous and rye cover crops altered free-living soil nematode community composition. Applied Soil Ecology 45: 1–12. (Available online at: http://dx.doi.org/10.1016/j.apsoil.2009.11.007) (verified 21 Feb 2011).
Lawley, Y. E., R. R. Weil, and J. R. Teasdale. 2011. Forage radish cover crop suppresses winter annual weeds in fall and before corn planting. Agronomy Journal 103: 137–144. (Available online at: http://dx.doi.org/10.2134/agronj2010.0187) (verified 21 Feb 2011).
Ngouajio, M, and D. R. Mutch, 2004. Oilseed Radish: A new cover crop for Michigan. Bulletin E2907. East Lansing: Michigan State University Extension. (Available online at: http://www.covercrops.msu.edu/pdf_files/extension_bulletin_E2907.pdf) (verified 13 Feb 2012)
Steddom, K, K. Ong, and J. Starr. 2008. Efficacy of various brassica varieties for the suppression of root knot, ring, and stunt nematodes. Phytopathology 98: S150. (Available online at: http://dx.doi.org/10.1094/PHYTO.2008.98.6.S9) (verified 21 Feb 2011).
Stewart, A. V., and A. J. Moorhead. 2004. The development of a fodder radish suitable for multiple grazing. Proceedings of the Thirty-fourth Annual Conference, Agronomy Society of New Zealand, Ashburton, New Zealand.
Weil, R. R., and A. Kremen. 2007. Thinking across and beyond disciplines to make cover crops pay. Journal of the Science of Food and Agriculture 87: 551–557. (Available online at: http://dx.doi.org/10.1002/jsfa.2742) (verified 21 Feb 2011).
White, C. M., and R. R. Weil. 2011. Forage radish cover crops increase soil test P surrounding holes created by the radish taproots. Soil Science Society of America Journal 75: 121–130. (Available online at: http://dx.doi.org/10.2136/sssaj2010.0095) (verified 21 Feb 2011).
White, C. M., and R. R. Weil. 2010. Forage radish and cereal rye cover crop effects on mycorrhizal fungus colonization of maize root. Plant and Soil 328: 507–521. (Available online at: http://dx.doi.org/10.1007/s11104-009-0131-x) (verified 21 Feb 2011).
http://www.extension.org/
Household Hazardous Wastes
What is Household Hazardous Waste?
Some jobs around the home may require the use of products containing hazardous components. Such products may include certain paints, cleaners, stains and varnishes, car batteries, motor oil, and pesticides. The used of leftover contents of such consumer products are known as "household hazardous waste."
Americans generate 1.6 million tons of household hazardous waste per year. The average home can accumulate as much as 100 pounds of household hazardous waste in the basement or garage and in storage closets. When improperly disposed of, household hazardous waste can create a potential risk to people and the environment. This page describes steps that people can take to reduce the amount of household hazardous waste they generate and to ensure that those wastes are safely stored, handled and disposed of.
What Are the Dangers of Improper Disposal?
Household hazardous wastes are sometimes disposed of improperly by individuals pouring wastes down the drain, on the ground, into storm sewers, or putting them out with the trash. The dangers of such disposal methods may not be immediately obvious, but certain types of household hazardous waste have the potential to cause physical injury to sanitation workers; contaminate septic tanks or wastewater treatment systems if poured down drains or toilets; and present hazards to children and pets if left around the house. While households do not have to separate household hazardous waste from trash under federal law, some states have special requirements. Call local or state solid waste officials to learn what requirements apply to households or small businesses in your area.
Some examples of hazardous wastes you may find around your house include:
- antifreeze
- batteries
- brake fluid
- chemical strippers
- chlorine bleach
- contact cement
- drain cleaners
- fire extinguishers
- flea collars and sprays
- herbicides
- insecticides and insect repellent
- kerosene
- lawn chemicals
- lighter fluid
- lye
- mothballs
- nail polish remover
- old propane tanks
- paints
- pesticides
- pool chemicals
- prescription drugs
- solvents
- spot removers
- stains and finishes
- toilet cleaners
- used motor oil
- oven cleaners
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Move to Reduce and Recycle
One way to reduce the potential concerns associated with household hazardous waste is to take actions that use nonhazardous or less hazardous components to accomplish the task at hand. Individuals can do this by reducing the amount and/or toxicity of products with hazardous components, use only the amount needed. Leftover materials can be shared with neighbors or donated to a business charity, or government agency, or given to a household hazardous waste program. Excess pesticide might be offered to a greenhouse or garden center, for example, and theater groups also need surplus paint. Some communities have even organized waste exchanges where household hazardous waste can be swapped or given away.
Recycling is an economical and environmentally sound way to handle some types of household hazardous waste, such as used automobile batteries and oil. Auto parts stores and service stations frequently accept used automobile batteries, and 80 percent of these batteries are currently recycled. In addition, hundreds of local governments working with civic organizations and private firms have implemented successful used oil recycling programs. Many service stations have begun collecting used oil as a service to their customers. Check with local solid waste officials to find out if a used oil recycling program is operating in your area.
Safe Management Methods
Because of the potential risks associated with household hazardous wastes, it is important that people always use, store, and dispose of materials containing hazardous substances safely:
Tip #1
Use and store products containing hazardous substances carefully to prevent any accidents at home. Never store hazardous products in food containers. Keep products containing hazardous materials in their original containers and never remove the labels. Corroding containers, however, should be repackaged and clearly labeled. This will prevent accidental ingestion and also can help protect sanitation workers.
Tip #2
When leftovers remain, never mix household hazardous waste with other products. Incompatibilities may react, ignite, or explode; contaminated household hazardous waste may become unrecyclable.
Tip #3
Follow any instructions for disposal and use provided on the label.
Tip #4
Take household hazardous waste to a local collection program, if available.
http://www.ehso.com/
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10 Tips for Creating a Zero Waste Home
By Erica Sofrina
I do my part to recycle and bring my own bags for purchases, but I am far from producing zero waste. While lugging multiple recycling bins to the curbside every week it has occurred me that I have a lot of recycling for only one person. I never totally connected the dots that the goal should be to have a system where all of the wrappers, junk mail, jars and cans don't enter my home to begin with!
I was recently inspired by a television show where Bea and Scott Johnson of Mill Valley, California talked about their Zero waste lifestyle. They produce the equivalent of a quart jar of waste per month for their entire family of four. Now that is pretty close to zero waste and a goal I am going to aspire to!
In a recent article about them in Sunset magazine, I was inspired by their commitment as a family to leave a lighter footprint. Their children are just as committed to the cause, and wrap their lunches in large cloths which they roll up and carry to school and reuse the next day. They have simplified their lives so completely that they are able to pack up on a dime and spend extended periods of time traveling and doing things they love. They are able to pay for the trips because of the 40 percent less they are spending on living expenses! They also rent their home while they are gone and use it as a teaching tool with detailed instructions for the renters on how they can create a zero waste lifestyle.
I yearned for the freedom from encumbrances that they have achieved, and the good feeling that comes from knowing my lifestyle is completely in alignment with my ethics about sustainability for the planet. I am inspired by their example to do more!
In Bea's recent article in Yes magazine, she outlines 10 tips to help the average person get on board and move closer towards zero waste. Here are some of her great suggestions:
- Refuse what you do not need.
- Reduce what you do need.
- Reuse by using reusables.
- Recycle what you cannot refuse, reduce or reuse.
- Rot (compost) the rest.
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Refuse
1. Fight junk mail. It's not just a waste of resources, but also of time. Register to receive less at dmachoice.org, optoutprescreen.com and catalogchoice.org.
2. Turn down freebies from conferences, fairs, and parties. Every time you take one, you create a demand to make more. Do you really need another "free" pen?
Reduce
3. Declutter your home, and donate to your local thrift shop. You'll lighten your load and make precious resources available to those looking to buy secondhand.
4. Reduce your shopping trips and keep a shopping list. The less you bring home, the less waste you'll have to deal with.
Reuse
5. Swap disposables for reusables (start using handkerchiefs, refillable bottles, shopping totes, cloth napkins, rags, etc.). You might find that you don't miss your paper towels, but rather enjoy the savings. [Noted!]
6. Avoid grocery shopping waste: Bring reusable totes, cloth bags (for bulk aisles), and jars (for wet items like cheese and deli foods) to the store and farmers market. [I always keep reusable totes in my car.]
Recycle
7. Know your city's recycling policies and locations—but think of recycling as a last resort. Have you refused, reduced, or reused first? Question the need and life-cycle of your purchases. Shopping is voting.
8. Buy primarily in bulk or secondhand, but if you must buy new, choose glass, metal, or cardboard. Avoid plastic: Much of it gets shipped across the world for recycling and often ends up in the landfill (or worse yet, the ocean).
Rot
9. Find a compost system that works for your home and get to know what it will digest (dryer lint, hair, and nails are all compostable).
10. Turn your home kitchen trash can into one large compost receptacle. The bigger the compost the more people will use it. [I will add that you want to have a bin that has a lid and is an attractive receptacle.]
I hope you will join me in working toward these zero waste goals in your own household. I am going to start today with stopping the junk mail, which has been a goal of mine for ages and I am ashamed that I haven't gotten around to it... Done!
http://www.care2.com/
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Zero waste family- Johnson Family
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