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Soil pollution By Nikhil Pakwanne
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Soil pollution By Nikhil Pakwanne



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  • 1. Government College Of Engineering, Aurangabad. Soil pollution Invented By:- Nikhil Pakwanne)
  • 2. Soil pollution
  • 3. Introduction of soil Soil can be define as the uppermost crust of earth mixed with organic material and in which animals and microorganisms live, and plants grow.
  • 4. Soil pollution• Soil pollution is defined or can be described as the contamination of soil of a particular region.• Soil pollution is caused by addition of chemicals, which reduces it’s productive capacity.• In rural areas more fertilizers & pesticides are used in agricultural operations & the residual chemicals remain in the top layers of soil.
  • 5. SOURCES OF SOIL POLLUTION• Acid rains• Excess application of pesticides, fertilizer.• Urban solid wastes.• Disposal of Industrial wastes and sludge over land.
  • 6. Acid Rain Acid Rain is caused by air pollution. The acidic water falls on the soil and pollutes it by making the soil acidic.
  • 7. Fertilizers The use of excess fertilizers to increase the crop yields makes the soil either acidic or alkaline and pollutes it. Ex: ammonium sulphate , sodium nitrate
  • 8. Fertilizers Excess use of Na, Mg, Ca, K, Zn in the form of fertilizers & pesticides inhibit plant growth & reduce crop yield.
  • 9. Urban wastes These wastes include a wet and fermentable fraction, made of food residuals from houses, restaurants and food industries, paper.
  • 10. Industrial waste This pollution can be very massive in certain areas, where the industries discharge their wastes and really great is the variety of pollutants: heavy metals compounds, asbest os, organic compounds
  • 11. POLLUTANTS Organic waste Compounds Excess use of fertilizers
  • 12. PollutantsOrganic waste Organic waste enter the soil pores & decompose pathological bacteria spread infection.Compounds Compounds containing arsenic, mercury, chromium, nickel, lead, Zin c, & iron are toxic to the life. Fluorides also affect the plant development.
  • 13. p0llutantsExcess use of fertilizers Excess use of Na, Mg, Ca, K, Zn, in the form of fertilizers & pesticides inhabit plant growth & reduce crop yield.
  • 14. effect Humans Animals Agricultural Urban
  • 15. Humans Effects Causes cancers including leukemia. Mercury can increase the risk of kidney damage. Also cause headaches, eye irritation & skin rash.
  • 16. Animals Effects Small life forms may consume harmful chemicals which may then be passed up the food chain to large animals.
  • 17. Agricultural Effects Decrease soil fertility. Reduced crop yield. Larger loss of soil & nutrients. Reduced nitrogen fixation.
  • 18. Urban Effects Public health problems. Pollution of drinking water sources. Foul smell & release of gases. Waste management problems.
  • 19. Control of soil pollution Ban on use of plastic bags which are major cause of pollution in cities. Recycling of plastic wastes to manufacture many ‘remake’ items. Ban on deforestation. Encouraging forest replantation programmes. Use carefully the fertilizers & pesticides preferable in optimal dose.
  • 20.  http://en.wikipedia.org WWW.GOOGLE.CO.IN