What is Mercury?
Mercury, also known as quicksilver, is an element that does not break down. It occurs naturally and is found in very small amounts in oceans, rocks, and soil. It becomes airborne when rocks break down, volcanoes erupt, and soil decomposes. It then circulates and is redistributed throughout the environment.
Large amounts of mercury also become airborne when coal, oil, wood, or
natural gas is burned as fuel or when mercury containing, garbage is
incinerated. Once in the air, mercury can fall to the ground with rain
and snow, landing on soil or in bodies of water, causing contamination.