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| Mercury is a metal, identified on the Periodic Table by the symbol HG. It occurs naturally in small amounts in the environment. Because it remains liquid at room temperature, it is used in many consumer products however it can be harmful to both animals and humans. |
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| When liquid mercury is spilled, it forms droplets that can accumulate in the tiniest of spaces and in small pools and droplets and then emit vapors in the air. Mercury vapor in the air is odorless, colorless and very toxic.Whole families have been poisoned from mercury spills in the home which have not been cleaned up or were cleaned up improperly using an ordinary vacuum cleaner. *Note- The small amount of mercury in a fever thermometer or flourescent bulb is not likely to cause a problem but should still be cleaned up. |
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| Health problems caused by mercury depend on how much has entered the body, how it enters the body, length of exposure and how the body responds to mercury. Children are more susceptible to mercury poisoning than adults. Levels of mercury can be measured in blood, urine, and scalp hair. EPA's Mercury web site presents information on health effects related to exposures to vapors from metallic mercury. For additional information on health effects, the Agency for Toxic Substances and Disease Registry (ASTDR) provides a Mercury fact sheet that also presents information on health effects related to exposures to vapors from metallic mercury. |
Exposure to small amounts of mercury-
 over long periods of time |  | Immediate effects of brief contact-
 high levels of mercury
- Loss of appetite
- Fatigue
- Insomnia
- Changes in behavior and personality
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Home or Business | | 
School
- chemistry labs
- some thermostats, barometers, electrical switches
- some light bulbs, including flourescent, high intensity, mercury vapor, high pressure sodium, and metal halides
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