The Spiraling Homestead

Wednesday, January 21, 2009

Is Your Home Causing Breast Cancer?

Robin Kay Levine, the founder and CEO of green cleaning products company Eco-Me, started her business in 2005 when her 35-year-old sister, with no family history, was diagnosed with breast cancer. "How does this happen?" Levine wondered at about the same time she was overwhelmed by fumes her sister's housekeeper left behind. "When you start thinking about it, there are so many chemicals we use until the moment we wake up to the moment we go to sleep," she says. "But no government agency tracks the chemicals being used in these products. Who's looking out for the consumers?"

Instead of offering premade batches of cleaning supplies, Eco-Me sells kits so people can brew their own at home, with ingredients Levine says our great grandmothers used -- vinegar, baking soda, essential oils. How's her sister now? In remission with a new baby.

Levine is on to something. Experts say that even products that meet government standards aren't completely safe, and can contribute to a variety of ailments, including breast cancer, ADHD, and asthma. Read on to find out if your home is harboring any hidden dangers.

Warning Labels

"Watch warning labels," says Robin Kay Levine, the founder of Eco-Me green cleaning products. No one expects consumers to be experts, however, or to know which funny-sounding chemicals are known carcinogens. Levine advises, "Look for products that give away the ingredients. Stay away from anything with a color in it. Labels that say 'keep windows open' and 'use in a ventilated room' are a dead giveaway."

Foam Containers

Foam containers are made of polystyrene, whose chemical ingredients can seep into food and your morning cup of coffee. Styrene has been blamed for skin, eye, and respiratory irritation, depression, fatigue, decreased kidney function, and central nervous system damage. Xenoestrogens like styrene are suspected hormone disruptors, meaning that they mimic estrogen in the body and disrupt normal hormone functioning. They are found in many common home products, including plastics and cosmetics and could lead to breast and prostate cancer. You asked for a doggie bag -- not a health risk.

Dryer Sheets

The slinky little sheets that keep clothes fresh are chock full of chemicals, including ethanol and chloroform. The ingredient benzyl acetate has been linked to pancreatic cancer and benzyl alcohol is known to cause upper respiratory irritation. When it reacts with ozone, the ingredient limonene can form formaldehyde, a known carcinogen, or cancer-causing agent. "We have gotten used to these wonderful lifestyles with 'better living through chemicals,'" says Kathy Loidolt, a consumer health advocate and author of the Shopper's Guide to Health Living. "But our bodies are being overloaded with toxins. We don't need to be scared of everything. We just need to get different habits."

Plastic

Baby bottles (and other refillable hard plastic bottles and plastic flatware) are commonly made from polycarbonate plastics, the most common type on the market. Unfortunately, when washed and heated (say, in the microwave), these plastics give off bisphenol-a, or BPA. BPA is a hormone disruptor that mimics estrogen and has been tied to developmental and neurological problems for unborn children. In animals BPA has contributed to reproductive system abnormalities such as infertility, enlarged prostate, and abnormal chromosomes, as well as obesity and insulin resistance, a precursor to diabetes. Look for BPA-free alternatives when shopping for your next baby shower gift!

Figuring out whether plastic containers are safe can be confusing: polyethylene is safe, polycarbonate isn't; polypropylene is safe, bisphenol-a isn't. After repeated reheating, polycarbonate, a chemical seen in several plastic storage products, can leak BPA, the dangerous hormone disruptor found in some baby bottles. Polyethylene terephthalate (PET), the chemical in most plastic soda bottles, leeks the hormone-disrupting carcinogens called phthalates after repeated use. Deli plastic like polyvinyl chloride (PVC) can also release dioxins.


"Ordinary" Cleaning Products

In addition to containing known harmful ingredients like ammonia, lye, phosphate, and chlorine, the majority of home cleaning products (just about everything under your kitchen sink) contain a vast array of chemicals, including toxic ethylene-based glycol ethers and non-toxic terpenes that become dangerous when they interact with ozone in the air. Experts say the single most important thing to remember about cleaning products is that you need good ventilation when using them.

Second Hand Scents

Dr. Anne Steinemann, a professor of engineering at the University of Washington, has long warned about the effects of "second hand scents" in everything from air fresheners to laundry detergent, spray disinfectants to scented candles. In 2007, she performed a chemical analysis of 30 of the bestselling scented household products and found that they contained known carcinogens and other dangerous chemicals. (The study appeared in 2008 in the Environmental Impact Assessment Review.) The products she studied contained more than two dozen volatile organic compounds, or VOCs, which the EPA says can cause nose and throat irritation, headaches, shortness of breath, nausea, and dizziness. Together, the products Steinemann tested contained more than 100 different chemicals, none of which were listed on the labels. "The labels look benign," Steinemann says. "But some of these chemicals are classified as toxic under federal laws and can be affecting you even without your knowledge." She recommends making your home fragrant with scents straight from the source, such as mint leaves or cinnamon sticks.

Dye

The color dyes that make soap more fun to use and frosting more fun to eat have been linked to increased hyperactivity in children. "What you put on your skin can go straight through to the bloodstream," says Loidolt, the consumer health advocate. It's the same reason she recommends avoiding perfume and chemical-packed lotions. Countless studies have produced countless opinions on exactly how great an ADHD irritant color dyes are, but there is some consensus that FD&C yellow #5 isn't something we'd prefer to eat -- or bathe in.

Hobbies

Superglue and other super-strength adhesives (you know, the kind that take two trucks to pull apart on TV) induce sensitization, according to Dr. Paul Blanc, a professor of medicine and chair of Occupational and Environmental Medicine at the University of California, San Francisco and author of How Everyday Products Make People Sick: Toxins at Home and in the Workplace. Exposure can start with allergies and lead to asthma. Other hobby materials can be dangerous, too; people who deal with leaded toys, the chemicals involved in stained glass making and amateur metal refining should be careful. "People think there's a magic wall between occupation exposures and home exposures, but in fact it's a spectrum," Blanc says.

New Home Smell

Between the adhesives, stain protectors, flame retardants, and the chemical behind that mysterious and distinctive "new carpet smell," carpeting combines a lot of potentially unhealthy elements. The dyes and solvents used to produce and install it emit volatile organic compounds (VOCs) including styrene, xylene, butlylated hydroxytoluene (BHT), and 4-Phenylcyclohexane (4-PC). Put together, these chemicals have caused respiratory and nervous system damage, as well as allergies, headaches, and nausea. Let the carpet air out for a few days in a well-ventilated area to reduce the VOCs and everyone will breathe easier.

Particle board, fiberboard, plywood, paneling, and some insulation, popular in homes of the 1970s and budget decorators, can emit formaldehyde, which the EPA calls a probable human carcinogen. Some of these materials contain urea-formaldehyde in the glue, which the EPA says is the highest indoor producer of formaldehyde, the chemical that can result in asthma attacks and other upper respiratory irritation, and burning of the eyes, nose, and throat. It has also been tied to cancer in animals. Unfortunately, these emissions can increase in humid summer months and some people are more vulnerable than others. The trailers the U.S. government provided to Hurricane Katrina survivors were giving off dangerous levels of formaldehyde.

Flame Retardents

Flame retardants used on upholstered furniture, mattresses, and electronic equipment have undoubtedly saved many lives, but there is a trade off. These polybrominated diphenyl ethers, or PBDEs, have caused memory and learning problems in rats and mice, as well as slowing their thyroid function and neurological development. It is not known what effect the chemicals may have on humans, though most people have them in their system.

Your Printer

Laser and ink-jet printers sure make our lives easier, but recent studies show that they also release volatile organic chemical emissions and ozone particulates, which have been linked to heart and lung disease after being inhaled. The jury is still out on whether the exposure levels in the average home are safe.

Hormone Disruption Cologne

"A single fragrance typically contains several hundred chemicals," says Dr. Steinemann, who studied the fragranced home products. Fragrances and other beauty and personal care products often contain the man-made chemicals called phthalates, or plasticizers, molecules absorbed through the skin that have caused birth defects in male genitalia in animals and may cause lowered sperm count in boys and premature breast development in girls. These chemicals have been banned from baby toys, but not your perfume. "Most of our exposure to toxic chemicals comes from the products we choose to use, not chemical waste sites," says Steinemann.

Non-Stick Pans

Nonstick and stain-resistant coatings, used on everything from your favorite omelette pan to your suede sofa, include perfluorinated acids (PFAs). Though their toxicity in human is still unclear, in animals, PFAs cause birth defects, thyroid hormone abnormalities, and liver damage.

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