Porfirio Gartland: Lead is an example of heavy metal -- that is, a metallic element that in pure form is heavy.Why is lead an important environmental issue? 1. Lead (Pb) is an element -- hence it cannot be degraded or transformed into some other material, and it is extremely difficult to clean up after dispersal in our environment. 2. Lead already widely contaminates our environment. 3. Lead is harmful in very small amounts (as are most heavy metals); once absorbed into the body lead combines with and inhibits the functioning of certain enzymes -- often with severe physiological or neurological consequences.Lead is a potent poison. Short-term exposure to high doses of lead can make you seriously ill. Long-term overexposure can cause numerous health problems, including: anemia and other blood disorders damage to your nervous system and brain kidney disease reproductive impairments in men (impotence and sterility) and women (decreased fertility, abnormal menstrual c! ycles, and miscarriages) ...Show more
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