EPA Method 835.1240

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EPA Method 835.1240:
Leaching Studies

The movement of pesticide residues by means of leaching through the soil profile or transport to and dispersion in the aquatic environment may cause contamination of food, result in loss of usable land and water resources to man due to contamination of groundwater supplies, or cause habitat loss to wildlife. Laboratory studies are used to predict the leaching potential of pesticides and their degradates through the soil profile at terrestrial sites; and the movement of pesticides and their degradates to and dispersion in aquatic sites. Leaching studies assess the mobility of the pesticide and its degradates through columns packed with the various soils.

This guideline is intended for use in meeting testing requirements of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) (7 U.S.C.136, et seq).