-:Abstract:-
Among many elements, MERCURY is a major pollutant in the Environment, is a natural component of the Earth's geology and it is the only liquid metal. Being a chemical element, it cannot be created or destroyed through ordinary chemical or physical means, so it’s very difficult to overcome the effects caused by it. What else the benefits, Disadvantages are more.

With regard to MERCURY, we are going to hash out the preventive measures to eradicate the impacts of it ecologically and biologically in the Environment.
-:Introduction:-
Mercury is a natural component of the earth's geology and it is the only metal which is in the form of liquid.
Mercury is a metallic identified by the symbol Hg on the periodic table. It is silver in colour and, unlike other metals, is liquid at room temperature. The ancient name for mercury was quicksilver, meaning "living" silver. This name reflected mercury's lustrous silver color and its unusually lively behavior: when it is poured onto a smooth surface, it forms beads that roll rapidly around. The element's modern name comes from Mercury (or Mercurius).
As per year, mobilization of mercury into the atmosphere is about 2400 tons.
-:Mercury’s Origin:-
Being chemical Element it cannot be created or destroyed through ordinary chemical or physical means.

Mercury is a metal occurring naturally throughout the earth’s crust, often in chemical combination with sulfur or other elements in rocks and minerals—for example, mercury appears in coal and in ores containing economically important minerals such as copper and zinc.
Recovery, purification, and use of these materials may release mercury into the environment—for example, in process waste streams or combustion emissions.
Eroding rocks and minerals form soils that release mercury by venting to the atmosphere and by water transport.
Mercury is widely found in water, soil and air in various forms. Methylmercury is an extremely poisonous form of mercury. Mercury present in the air gets deposited onto land or into water and is converted to methylmercury by certain microorganisms.
Fish and shellfish that contain methylmercury are the major sources of mercury poisoning in humans.
-:Bumfs of Mercury:-
Mercury occurs in two primary forms: elemental mercury (Hg0) and inorganic mercury (Hg2+).
Elemental mercury is the pure silvery-white form found in rocks and minerals. It does not combine with other chemicals.
Inorganic mercury can combine with other chemicals to form compounds. In addition to elemental and inorganic mercury, there are organic mercury compounds such as methyl mercury (MeHg).
Deposition of Mercury into the Environment:-
Atmospheric mercury returns to the earth by wet deposition and dry deposition.
Wet deposition involves precipitation of mercury in rain and snow. Because inorganic mercury is a million times more water-soluble than elemental mercury, inorganic mercury readily dissolves in cloud droplets, rain, and snow to facilitate its wet deposition.
Dry deposition involves physical and chemical processes that do not depend on precipitation. When mercury concentrations in the atmosphere exceed mercury concentrations on the earth’s surface, these physical and chemical processes equalize the concentrations by causing mercury to dry deposit to the ground.
Is mercury a health hazard?
There have been three major accidental mercury poisoning incidents:–
• two in Japan in the 1950s
• one in Iraq in the 1970s
People ate massive amounts of organic mercury (methylmercury) in contaminated food.
Their exposure levels were hundreds of times higher than any mercury exposure in North America today.
In these accidental poisoning cases, the children and adults exposed to the highest amounts of mercury experienced kidney, brain, and nerve damage, while some died.