OVERVIEW Definition of Pollution Water Pollution

a. Introduction c. Effectsb. Causes d. Prevention

Causes of Water Pollution Pollution Sources Water Pollution Pictures Effects of Water Pollution How to Avoid Water Pollution References

DEFINITION OF POLLUTIONWhen Harmful Substances Contaminate the

Environment it is Called Pollution.

Pollution refers to the very bad condition of environment in terms of quantity and quality .

Water God’s Valuable Gift

Definition of Water PollutionThe Contamination of water with undesirable substances which make it unfit for usage is termed water Pollution.

Causes of Water PollutionAbout 40% of Deaths worldwide are caused

by Water Pollution.Water Pollution is Caused by organsic and

inorganic industrial wastes and affluents discharged into rivers.

Noise also causes anxiety stress reacation and fright.

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Water Pollutionseepage into ground water from nonpoint

sourcesthe loss of habitats such as wetlands. we cannot always eat what we catch because

fish flesh is contaminated by the remaining discharges and sources of toxic substances.

Microbial contamination of drinking water still presents problems in many communities.

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Pollution SourcesPoint sources are direct discharges to a

single point; examples include discharges from sewage

treatment plants, injection wells,and some industrial sources.

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Pollution SourcesNon-point sources are diffused across a

broad area and their contamination cannot be traced to a single discharge point.Examples include runoff of excess

fertilizers, herbicides, and insecticides from agricultural lands and residential areas; oil, grease, and toxic chemicals from urban runoff and energy production; and sediment from improperly managed construction sites, crop and forest lands, and eroding stream banks.

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Water Pollution Pictures

Effects of Water PollutionDiseases like CholeraMalariaTyphoid (spread during the rainy season )Aquatic life gets destroyed

How to Avoid Water PollutionRivers should not be used for washing clothes

or bathing animals in.Harvesting of Rainwater to meet water

requirements.Dams &embankments must be created.The rivers must not be contaminated.In sacred river like Ganga the dead bodies

shouldn’t thrown.

ReferencesScience bookswww.google.comhttp://en.wikepedia.org/wiki/AirPollutionFree foto.com