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Essay on Water Pollution Caused by Agriculture

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Essay on Water Pollution Caused by Agriculture

It has been widely accepted that agriculture is the unique largest user of surface and groundwater supplies, which consumes a global average of 70% of water resources. However, agriculture can definitely causes water pollution through inappropriate use and dispose of pesticide, livestock pollution and poor water resource management.


It cannot be denied that pesticide that has been diffusely applied in agriculture contributes a lot to the advancement of georgic output and development of the quantity of agricultural produce. However, it is said that some of improper activities in using and stocking pesticide, which are probably caused by lack of training of users in pesticide handling and application, such as using pesticide for killing trash fish, using old pesticide drums for drinking water and dumping surplus pesticide mixtures into water courses following application, had lead to some environmental and public health hazards such as ecosystem dysfunction, loss of biodiversity, contamination of groundwater resources and so called “water-borne diseases”.


On the other hand, water pollution is also attribute to Stockbreeding – a branch of agriculture. An article report by the Natural Resources Defense Council, July 2001, pointed out “In 1995, an eight-acre hog-waste lagoon in North Carolina burst, spilling 25 million gallons of manure into the New River. The spill killed about 10 million fish and closed 364,000 acres of coastal wetlands to shell fishing.” Moreover, According to the U.S. Environmental Protection Agency, more than 27,000 miles of rivers and contaminated groundwater, in dozens of states, has polluted with livestock waste. Last by not the least, nutrients in animal waste can obviously cause algal blooms, which contribute to “dead zones” in the coastal waters by using up oxygen in the water. These “dead zones” cannot contain enough oxygen to support aquatic life.


Although great improvement has been made in technology after ...

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    Essay on Water Pollution Caused by Agriculture