Water pollution
-
Upload
muni-venkatesh -
Category
Education
-
view
78 -
download
1
Transcript of Water pollution
![Page 1: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/1.jpg)
Munivenkatesh.P
WATER POLLUTION
![Page 2: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/2.jpg)
WATER o Water covers 71% of the Earth's surface. It is vital for all known forms of life.
![Page 3: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/3.jpg)
96.5% of the planet's water is found in seas and oceans.
1.7% in groundwater, 1.7% in glaciers and the ice caps of
Antarctica and Greenland, a small fraction in other large water bodies.
0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation
![Page 4: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/4.jpg)
![Page 5: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/5.jpg)
WATER POLLUTION
![Page 6: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/6.jpg)
o Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater).
o Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
![Page 7: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/7.jpg)
Water pollution affects plants and organisms living in these bodies of water.
In almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.
![Page 8: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/8.jpg)
TYPES OF WATER POLLUTIONPOINT SOURCE .
NON – POINT SOURCE .
![Page 9: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/9.jpg)
POINT SOURCE :- Point source
pollution is a specific source of pollution that can be identified.
Example: A pipe gushing colored water into a river
![Page 10: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/10.jpg)
![Page 11: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/11.jpg)
NON –POINT SOURCE :-A widely spread
source of pollution that can’t be tied to a specific point of origin is called nonpoint source pollution.
Example: Runoff from a farm field, a street, or a construction
![Page 12: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/12.jpg)
CAUSES OF WATER POLLUTION
![Page 13: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/13.jpg)
![Page 14: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/14.jpg)
Sewage in citiesDuring heavy rains or floods, sanitary sewers sometimes overflow and can pollute the surface water. If this happens, people are often told to boil water for drinking and cooking after a flood. The boiling kills many disease-causing organisms.
![Page 15: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/15.jpg)
![Page 16: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/16.jpg)
In rural areas, people must be careful where they locate septic tanks.
If a tank is too near a stream or on a hill, wastewater can leak into the stream or flow downhill to the area of a well.
SEWAGES IN RURAL AREA :-
![Page 17: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/17.jpg)
INDUSTRIAL WASTE
![Page 18: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/18.jpg)
Chemicals, smoke , and heated water are three types of pollutants produced by factories, mines, and other industries.
In the past, many industries stored toxic wastes in barrels or other containers buried underground. Over the years, however, many of these containers rusted or broke. The chemicals leaked out, polluting both the soil and the groundwater.
![Page 19: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/19.jpg)
o When coal, oil, and gasoline are burned, the gases sulfur dioxide and nitrogen oxide are released into the atmosphere. o The sulfur and nitrogen react with water, forming sulfuric and nitric acids . The result is acid rain.o Acid rain can affect fish, harm trees, and eat away the stone of buildings and statues
![Page 20: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/20.jpg)
![Page 21: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/21.jpg)
Oil refineries pollute air, water and soil . All refineries pollute the environment at unacceptable & unhealthy levels .
Oil spills are the release of liquid petroleum hydrocarbon. The reasons for the oil spills are damaged tankers any many ship accidents.
Tar balls it is actually a remnants of oil spills
OIL POLLUTION
![Page 22: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/22.jpg)
![Page 23: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/23.jpg)
![Page 24: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/24.jpg)
disease caused by polluted water .
![Page 25: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/25.jpg)
• Amoebiasis •Cho leRa•Dysentery •Diarrhea •Hepatitis -a• Lead poisoning •SchistosomEasis•Malaria•Typhoid•River blindness
![Page 26: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/26.jpg)
![Page 27: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/27.jpg)
![Page 28: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/28.jpg)
![Page 29: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/29.jpg)
![Page 30: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/30.jpg)
![Page 31: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/31.jpg)
Solving pollution problems involves cleaning up existing problems as well as preventing new ones. Many pollutants are removed from fresh water through.Plant roots filter larger particles from the water. Certain bacteria consume oil and have been used to cleanup oil spills. Wetlands have been built near coal mines to treat acidic mining runoff before it returns to the environment. Many industries have found that recycling techniques that conserve water also reduce pollution.
![Page 32: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/32.jpg)
![Page 33: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/33.jpg)
•There are 3 different things that can help to tackle the problem.•EDUCATION.• LAWS• ECONOMICS .
![Page 34: Water pollution](https://reader034.fdocuments.net/reader034/viewer/2022042716/55c45574bb61ebbf4e8b4613/html5/thumbnails/34.jpg)