Abstract

By the year 2050, the world population is estimated to reach 9.1 billion, which in-turn will increase demand for food production by 70% in developing countries. To fulfill the food security requirement over 1 billion population India need to produce an additional 5 million tons per year for the next 20 years to meet its food grain need of 300 million by 2020. Crop protection chemicals or pesticides are inherently toxic and therefore harmful for other non target organisms. The risk posed by these chemicals increased many-folds due to the fact that they do not stay at the intended target surface. Various mechanisms are involved in the movement of pesticides in different environmental components i.e., air, soil and water. Global literature survey showed that synthetic pesticides have potential risk to human and other life forms and unwanted side effects to the environment. In this paper, various studies are reviewed with the aim to understand the factors determining the occurrence of pesticides in far away places and disturbing ecological balance..

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