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Mercury Thermometer Threat


Retail outlets are getting in on the act as well. "We are extremely pleased with retail response in removing mercury thermometer from shelves and [are] encouraging remaining [retail stores] to make a similar commitment," Harvie says. Eleven leading retailers and manufacturers including Albertson's, Brooks Pharmacy,, and Kmart Corporation have stopped selling the thermometers.

Burned medical waste accounts for 10% of mercury in the air and tossing mercury fever thermometers in the kitchen garbage can is the largest single source of mercury in solid waste, he says.

Still, most human exposure to mercury comes through eating contaminated fish. Pregnant women, women of childbearing age, and young children are particularly at risk from mercury exposure. More than 60,000 children each year may be at risk for learning disabilities because of mercury-contaminated fish eaten by their mothers during pregnancy, according to a report issued by the National Academy of Sciences.

"We are not saying don't eat fish. Instead, learn more about where the hot spots are in local lakes and rivers, consider what type of fish you are eating, and do what you can to keep mercury out of your house," says Hunt Christensen.

Consumers should also remember that "mercury thermometers should never, ever be thrown in the trash, even if they are not broken," Cecilia DeLoach, the D.C. Campaign director Health Care Without Harm, tells WebMD.

"If a mercury thermometer breaks and gets into a carpet, it will vaporize and go into a room and can have health effects on children and others who spend time in the room," she says. The largest risk for mercury exposure is in a small, poorly ventilated room. Even the smallest amount of mercury needs to be treated as a serious issue.

"Bring your mercury thermometer to a household hazardous waste collection facility," she says. "Many state or local agencies operate these facilities as permanent or seasonal collections. Typically, the service is free." For more information on household hazardous waste collections in your area, call your state pollution control, she suggests.

But if a mercury spill should occur, remember the following:

  • Immediately keep all people and pets away from the spill area. To minimize the mercury that vaporizes, turn off any heaters and turn up any air conditioners.
  • Ventilate the area by opening windows and, when possible, keep open for at least two days.
  • Never use a vacuum to clean up a mercury spill. Not only will the mercury contaminate your vacuum, but the heat from the vacuum will evaporate the mercury, further distributing it throughout the house. Similarly, never use a broom to clean up mercury. It will only distribute the mercury into smaller beads, and will contaminate the broom.



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