Mercury is a poisonous heavy metal and is contained in some of the 
products we use everyday. It can be found in your home, in health 
care facilities, and in schools.Mercury exposure at high levels can 
harm the brain, heart, kidneys, lungs, and immune system of people of 
all ages. It has been demonstrated that high levels of methyl mercury 
in the bloodstream of unborn babies and young children may harm the 
developing nervous system, making the child less able to think and 
learn. Where is mercury found? Sources of mercury in the home include 
fluorescent light bulbs (both tubes and Compact Fluorescent Lamps CFLs),
mercury thermometers, and mercury thermostats.