The body gets rid of mercury through the urine and feces. Removal of this substance from the body can take up to several months after exposure. Children exposed to metallic mercury for long periods may have trouble learning in school. Prevention is the key to avoiding poisoning in homes, schools, and families. First, avoid using metallic mercury.
Appropriate substitutes are available for nearly all uses of metallic mercury.
Therefore, be sure you need to use it. If not, make arrangements to safely dispose of whatever metallic mercury you might have. If you do need to use metallic mercury, make sure it is safely stored in a leakproof container. Use of metallic mercury in a controlled environment helps to reduce the risk that contamination will occur. Mercury contamination results from exposure through the air, water, food, soil, or direct contact.