Fifty percent of world argricultural production is destroyed by insects
each year. Therefore, enormous quantities of insecticides are consumed to
control these pests. As an example, France is using 35000 metric tons insecticide
every year. Some of the methods used for spraying and applying insecticides
tend to increase the pollution of natural waters .
In this article different factors causing water pollution by insecticides are
reviewed and studied briefly.
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