Pesticide Fate and Transport in Water REGIONAL TRANSPORT DRY、PRECIPITATION EVAPORATION DEPOSITION SPRAY DRIFT WIND EROSION RUNOFF wA蛋 y7端 RUNOFF SEEPAGE GROUND-WATE月SEEPAGE DISCHA月GE TO STREAMS USAID Managing Hazardous PesticidesManaging Hazardous Pesticides Pesticide Fate and Transport in Water