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Introduction to soil pollution

About: Introduction to soil pollution

06 Feb '09 10:18 am
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The wars that hit the earth are probably the immediate cause of soil pollution. Not talking in the sense of how many people died but in that it is through this period that many countries found the necessity to improve their living standards. After the world war two, many countries suffered from food shortage and this facilitated the intoruction of fertilizers and other agricultural chemicals. Although KNP [ Potassium, Nitrogen, Phosphorus] fertilisers has not led to soil pollution, the application of trace elements has.
Pesticides such as DDT [dichlorodiphenyltrichloroethane]a colourless chemical pesticide, which is a potent nerve poison in insects was first widely used to combat diseases such as yellow fever and malaria. It was later used to control and/ or eradicate disease carrying and crop eating insects. DDT was later on discovered to cause endagerement of species in the same food chain as the
controlled insects, particularly birds. DDT prevents the shelling of bird eggs and ...more
Answered by radhikamruta, 06 Feb '09 10:24 am

 
  
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