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Broken Thermometer Poses Hazard

Q. The other day I had a fever and was taking my temperature. When I was shaking my thermometer, the bottom broke off and it spilled down the sink drain. I was too sick to do anything about it that day.

Today, I am feeling better and when I searched the Web for ideas about disposal I got freaked out. What should I do about the mercury that went down the drain?

A. This is a serious situation because liquid mercury from a thermometer can release mercury vapors that are toxic. They can also get into wastewater and cause dangerous pollution.

The mercury is probably caught in the U-shaped trap under the sink. A plumber could help you clean out the trap into a bucket. If you opt to do this yourself, though, be sure to wear disposable latex gloves. After removing the trap, empty the contents into a bucket. Carefully pour off as much water as you can and then use an eyedropper to pick up the mercury. Put it into a zip-top sealable plastic bag. Seal the eyedropper in a separate bag and take both to a hazardous waste collection site.

Your experience underscores the importance of eliminating all mercury-containing thermometers. Instead, consider a digital thermometer. One new device is the Temple Touch Thermometer. It provides a digital readout in 6 seconds. This is especially convenient for parents with young children since it does not require rectal or oral placement.

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About the Author
Joe Graedon is a pharmacologist who has dedicated his career to making drug information understandable to consumers. His best-selling book, The People’s Pharmacy, was published in 1976 and led to a syndicated newspaper column, syndicated public radio show and web site. In 2006, Long Island University awarded him an honorary doctorate as “one of the country's leading drug experts for the consumer.”.
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