Soil Pollution
Any substance that adversely affects the productivity of soil is called a soil pollutant. Contamination of soil with pollutants like insecticides, artificial fertilizers and industrial wastes is called soil pollution. The major sources of soil pollution are:
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Pollutants like acids washed off from the atmosphere (acid rain).
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Pesticides and herbicides sprayed in fields.
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Excessive use of artificial fertilizers.
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Solid wastes like garbage, trash, ash, building material, plastic, bottles and cans.
How to Control Soil Pollution?
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Avoiding excessive use of pesticides, herbicides and fertilizers.
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Minimizing emissions from motor vehicles and industries (to control acid rain).
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Using the garbage, trash and Industrial wastes as sanitary landfill where untreated waste is buried in layers covered with soil.