Water Pollution

Water pollution

Comprising over 70 of the Earth 's surface , water is surely the most precious natural resource that exists on our planet . Without the evidently inestimable compound comprised of hydrogen and oxygen , life on Earth would be non-existent : it is necessary for everything on our planet to grow and prosper . Although we as humans realise this fact , we neglect it by polluting our rivers , lakes , and oceans . Subsequently , we are slowly but surely destroying our planet to the point where organisms are perishing at a very alarming rate

Water pollution

occurs when a body of water is adversely affected due to the supplement of large quantities of materials to the water . When it is inappropriate for its intended use , water is considered polluted There are two types of water pollutants : point source and nonpoint source . Point sources of pollution occur when harmful substances are emitted straight into a body of water . The Exxon Valdez oil spill best shows up a point source water pollution . A nonpoint source creates pollutants indirectly through environmental changes . An instance of this type of water pollution is when fertilizer from a field is transformed into a stream by rain , in the form of run-off which in turn influences aquatic life . Nonpoint sources are much more difficult to control . Pollution arising from nonpoint

sources answers for a majority of the contaminants in streams and lakes Many causes of pollution combining sewage and fertilizers include nutrients such as nitrates and phosphates . In big quantities , nutrients over stimulate the growth of aquatic plants and algae . Excessive growth of these types of organisms eventually clogs our waterways , use up dissolved oxygen as they decompose , and blockade light to deeper waters This , in turn , becomes very harmful to aquatic organisms as it affects the respiration ability or fish and other invertebrates that live in water

Oil pollution is an increasing problem , particularly destroying to coastal wildlife . Small amounts of oil spread rapidly across long distances to form deadly oil slicks . This fact alarmed many people . For example , demonstrators with "oil-covered " plastic animals protest a potential drilling project in Key Largo , Florida . Whether or not casual spills occur during the project , its affect on the delicate marine ecosystem of the coral reefs could be destructive

To clean up a California beach after an oil tanker spill workers use special nets . Tanker spills are a growing environmental problem because once oil has spilled , it is virtually unreal to completely remove or control it

Water courses are heavily polluted by fertilizers and pesticides transcending admissible levels by a factor of 5 - 10 . Only 13 of domestic and industrial sewage is treated prior to discharges into the river and in many country areas only dirty water is available for domestic needs . The worst affected are Batumi , Poti and Sokhumi Draining the wetlands in this region for agricultural purposes has overburdened the area with these pollutants . About 3337 mill . cub . m of water resources were abstracted in Georgia in 1991 for industrial communal and...