Ecological aspects of soil pollution by pesticides

Soil pollution by pesticides may arise from several sources. A high proportion of pesticides comes into contact with the soil either during their direct application to the soil against soil pests and weeds, or indirectly as 

Pesticides in the soil environmnet exhibit essentially two types of the behaviour either they can persist in the soil or they can disappear from the soil, depending on adsorption and desorption, leaching and diffusion, evaporation and decomposition. The movement of pesticide in the soil starts by the leaching and diffusion, and via evaporation they enter the atmosphere 

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