General Description
Mercury is a silvery room-temperature heavy metal and a chemical element. Mercury is found in natural ores deposits and manufactured devices such as barometers, thermometers, dry-cell batteries, switches, fluorescent light bulbs, and other various electronics. Mercury can seep into water supplies from improperly discarded devices containing it, as runoff from landfills & farm land, dumped by factories, or from natural deposits. Mercury is extremely toxic and precautions must be taken when handling or disposing of it, as mercury can be absorbed through the skin and inhaled. Mercury poisoning deteriorates the nervous system, can impair hearing, speech, vision and gait, involuntary muscle movements, corrodes skin and mucous membranes, and causes chewing and swallowing to become difficult. The current EPA regulated maximum containment level for mercuric ions is 0.002 mg/L.