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When a family member feels sick,
we check for fever. Getting out the thermometer is often one of the first
steps in caring for someone who doesn't feel well. But, ironically, the
type of fever thermometer you have in your home can be a risk to the
health of your family and community.
As children, most parents of today grew up with mercury thermometers in their homes. Mercury thermometers are easy to recognize. Mercury thermometers are made of glass the size of a straw, with a silvery-white liquid inside. This liquid is mercury. While mercury has proved useful in measuring devices such as thermometers, it is a toxic substance that can harm both humans and wildlife. |
Mercury affects the human brain, spinal cord, kidneys and liver. It
affects the ability to feel, see, taste and move. It can cause tingling
sensations in the fingers and toes, a numb sensation around the mouth and
tunnel vision. Long term exposure to mercury can result in symptoms that
get progressively worse and lead to personality changes, stupor and coma.
Wildlife populations, especially loons, are already exhibiting effects of
mercury poisoning. There is so much mercury pollution that 39 states are
currently warning residents not to eat certain species of fish caught in
all or some of the state's lakes, rivers and streams.
In pregnant women, mercury can pass through the placenta, where it affects fetal development, by preventing the brain and nervous system from developing normally. Affected children show lowered intelligence, impaired hearing and poor coordination. Their verbal and motor skills may be delayed. Because of these threats to the developing fetus, the federal government recommends that women who are pregnant or who may become pregnant not eat mercury-contaminated fish.
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Many families have had a mercury thermometer in their medicine chest
for years, without it breaking. Yet, public health officials across the
country report a steady stream of concerned calls from parents that have
accidentally broken their mercury thermometers.
Because your mercury thermometer
has never broken, it does not mean it never will. Oftentimes, parents may
not clean up spilled mercury because they may not know that their
thermometer has broken, or if the mercury has spilled into a hidden crack
in the floor or soaked into a carpet. If mercury spills from a thermometer
and is not cleaned-up, it will all evaporate, potentially reaching
dangerous levels in indoor air. 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.
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A variety of mercury-free alternatives are available at your local
pharmacy. Alternatives most comparable in cost and use to the mercury
fever thermometer include digital thermometers, glass gallium-tin or glass
alcohol thermometers. These can all be used orally, rectally, or
axillarily (in the armpit). Other alternatives include inexpensive
flexible forehead thermometers or the more expensive infrared ear
thermometer. Flexible forehead thermometers are easy and fast to use, but
not very accurate. According to the American Medical Association, the most
important thing is to choose a thermometer that is easy to use and read.
In the summer of 1998, the American Hospital Association (AHA) signed an agreement with the United States Environmental Protection Agency committing it to the virtual elimination of mercury from the hospital's wastestream. In order to accomplish this, many hospitals are phasing out the use of mercury thermometers and other mercury containing equipment. By eliminating mercury use in your house you will be setting an example for the hospitals in your community. If your healthcare provider still uses mercury thermometers or other mercury-containing equipment such as blood pressure devices, give them a copy of this brochure and ask them to look for alternatives. Talk with your local pharmacist about taking the mercury-containing products off the drugstore shelf. Help distribute this brochure to child-care centers, PTAs and other organizations concerned with children's health. |
Once a mercury-free replacement has been purchased, it is important to
dispose of the old thermometer safely. Do not throw the old mercury
thermometer in the garbage. Garbage is either incinerated or landfilled.
In either case, the mercury will make its way into the environment through air emissions or water contamination. This mercury will then affect many living things, including humans. Bring your mercury thermometer to a household hazardous waste collection facility. 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 agency or your local health department located in the government listings in your phone book . |
Immediately after a spill 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; 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. Assemble the necessary supplies before attempting a clean up. These include gloves, an eyedropper, and two stiff pieces of paper or cardboard, two plastic bags, a large tray or box, duct tape or packing tape, a flashlight and a wide mouth container. Remember that any tools used for clean up should be considered contaminated and disposed of with the mercury. Do not touch the mercury. Remove all jewelry and watches from your
hands as mercury will bond with the metal. Put on gloves, preferably
rubber gloves to minimize contact with mercury. Use the flashlight to
locate the mercury. The light will reflect off the mercury beads and make
them easier to find. Clean up the spill. Different surfaces require different clean up procedures. On a hard surface or tightly woven fabric use stiff paper to push beads of mercury together. Use the eyedropper to suction the beads of mercury, or working over the tray to catch any spills, lift the beads of mercury with the stiff paper. Carefully place the mercury in a wide mouth container. Pick up any remaining beads of mercury with sticky tape and place contaminated tape in a plastic bag along with the eyedropper, stiff paper, and gloves. Label the bag as mercury waste. Place this bag and sealed container in the second bag. Label it as mercury waste and call your State agency for appropriate disposal. On a carpet or rug, the mercury-contaminated section should be cut out. This cut-out section, along with all cleanup items, should be placed in a plastic bag. Label it as mercury waste and call your State agency for appropriate disposal. In a sink of water mercury will sink to the bottom. Remove as much water without disturbing the mercury and recovery the mercury with an eyedropper. Place in a wide mouth container, close the lid and seal it with tape. Label it as mercury waste and call your State agency for appropriate disposal. In a drain, mercury will get caught in your sink trap. Working over a tray, remove the trap and pour the contents into large mouth container. Close the container lid and seal with tape. Label it as mercury waste and call your State agency for appropriate disposal. |
Health Care Without Harm Health Care Without Harm, the Campaign for Environmentally Responsible Health Care, is producing and distributing this information. Health Care Without Harm is an international campaign with over 170 participating organizations focused on transforming the health care industry so it is no longer a source of environmental harm by eliminating pollution in health care practices. The campaign is working with hospitals and other health care institutions to phase out the use of mercury and other toxic pollutants in health care products and practices. Health Care Without
Harm |