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The 10 Most Dangerous Toxins in your Home

The 10 Most Dangerous Toxins in Your Household

By Claude Morgan

It's official: Staying home is hazardous to your health. Toxins found in the home injured 789,000 Americans between 1992 and 1995, and new research suggests that this figure is underestimated.

"Toxins in U.S. homes now account for 90 percent of all reported poisonings each year," says Rose Ann Soloway, administrator of the American Association of Poison Control Centers. That's an epidemic of hazardous living by any standard. And while these figures include everything from non-fatal aspirin overdoses to the deadly consumption of drain cleaners, they fail to include long-term exposure to toxins like lead and asbestos.

To address the climbing domestic injury rates associated with household toxins, Congress and the Centers for Disease Control (CDC) in 1992 created the Unintentional Injury Center to focus on the health dangers of consumer goods and modern home living. Other federal agencies are following suit. The Environmental Protection Agency (EPA) now has branches which deal with home indoor air quality, lead exposure and ubiquitous low-level toxicity, and the Department of Housing and Urban Development publishes a pollution look-out list for first-time homebuyers.

The short list of toxins under your roof may surprise you:

* Formaldehyde offgasses (evaporates) from cushions, particleboard and adhesives used to manufacture most inexpensive wood-based products. Carpets and carpet cushions may also give off gas formaldehyde, causing eye and upper respiratory irritation. According to the EPA, formaldehyde may even cause cancer;

* Radon is the second-leading cause of lung cancer in the U.S., warns the Surgeon General. Radon is a natural radioactive gas which can seep into homes through cracks in the basement, the surrounding foundation, and in well water. It enters the body quietly through the airway;

* Lead keeps epidemiologists returning to the drawing board, says Soloway, "mostly because we know more now about the adverse effects of low-level exposure." Levels once thought to be acceptable are now known contributors to learning disabilities and behavioral problems. Lead is found in paint in older houses, old plumbing, and soil near highways and busy roads. It causes neurological and kidney damage, high blood pressure, disrupted blood cell production, and reproductive problems;

* Carbon monoxide will kill an estimated 660 Americans this year. Don't look for exhaust fumes in the attached garage; the biggest culprit is the unserviced furnace burning propane, natural gas, butane or oil


* Carbon monoxide will kill an estimated 660 Americans this year. Don't look for exhaust fumes in the attached garage; the biggest culprit is the unserviced furnace burning propane, butane or oil;

* Arsenic is still laced in many household pesticides and is increasingly used as a wood preservative. Low levels of inorganic arsenic "may increase lung cancer risk," according to the CDC. The Department of Health and Human Services agrees, adding arsenic compounds to the list of known carcinogens;

* Vinyl chloride is the source of "new car smell": The plastic interior of a new car offgasses this known carcinogen. Water sitting in PVC pipes overnight may be steeping into a toxic tea. Very large exposures can lead to "vinyl chloride disease," which causes severe liver damage and ballooning of the fingertips;

* Hydrofluoric acid "can cause intense pain and damage to tissues and bone if the recommended gloves happen to have holes in them," says Soloway. This highly corrosive substance is the active ingredient in many household rust removers;

But even the most liberal list of known toxins pales next to the order of volatile organic compounds (VOCs). VOCs comprise hundreds of natural and man-made, carbon-based agents. They react quickly with other carbon-based compounds, and evaporate easily, making them ideal solvents. VOCs can be found in disinfectants and pesticides too.

* Solvents: Benzene and methyl ethyl ketone traverse cell walls unchecked by normal cell defenses. Both are known carcinogens. Cousins toluene, xylene, 1,1,1-trichloroethane (TCA) and trichloroethylene (TCE) make up the lion's share of the solvent market;

* Disinfectants: Phenols, which include biphenyl, phenolics and the preservative pentachloraphenol, are found in disinfectants, antiseptics, perfumes, mouthwashes, glues and air fresheners;

* Pesticides: Chlordane, aldrin, dieldrin, though all banned for nearly two decades, continue to show up airborne in older houses.

Don't be a statistical figure on the CDC's tracking list: Be aware of what substances, from pesticides to cleaners, pose real threats in your household. Maintain ingredient awareness. Many poisonings still occur because of product combinations, like the ammonia-chlorine bleach reaction, which produces the deadly respiratory irritant chloramine (a problem labeling practices have not addressed). Replace toxic agents with non-toxic alternatives. Above all, educate your household to reduce risk and exposure.

For practical ideas on reducing risk, consult the following books: Living Healthy in a Toxic World by David Steinman and R. Michael Wisner (Berkley, 1996); Toxins A-Z: A Guide to Everyday Pollution Hazards by John Harte, Cheryl Holdren, Richard Schneider, and Christine Shirley (University of California, 1991); Home Safe Home: Protecting Yourself and Your Family from Everyday Toxins and Harmful Household Products by Debra L. Dadd (Putnam, 1997).


For more information, contact the Unintentional Injury Center, (770)488-4652.

(Claude Morgan is a freelance writer based in Maine who contributes to E, the Environmental Magazine.)

Copyright 1997, The Los Angeles Times Syndicate, All Rights Reserved

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