User:Poornimavm/Sandbox

WATER POLLUTION
'Pollution refers to the introduction of the contaminants into the natural environment that cause adverse change. '

The major types of pollution are ,

• water pollution 

• air pollution

• soil pollution

• noise pollution

 Water Pollution: Water pollution is the contamination of the water bodies like lake, river , sea , ocean , ground water etc.

Water pollution has many causes and characteristics.


 *  Increase in nutrient loading leads to eutrophication.
 * Organic wastes such as sewage and farm waste impose high oxygen demands on the receiving water leading to oxygen depletion with potentially serve impacts on the whole ecosystem.
 * The industries discharge a variety of pollutants in their wastewater including heavy metals, organic toxins , oils , nutrients and solids.
 * Discharges can also have thermal effects, especially those from power stations and these too reduce the available oxygen.
 * Slit bearing run off from many activities including construction sites, forestry and farms can inhibit the penetration of sunlight through the water column restricting photosynthesis and causing blanketing of the lake or river bed which in turns damages the ecology.

'    There is no easy way to solve water pollution.If there were it wouldn′t be so much of a problem. Broadly speaking there are three different things that help to tackle the problem namely education, laws and economics and they work together as a team. '