Ecological Risk Assessment for Chlorpyrifos in Terrestrial and Aquatic Systems in North America

Abstract

This volume of Reviews in Environmental Contamination and Toxicology (RECT) is devoted to an ecological risk assessment of the insecticide, chlorpyrifos (CPY). Chlorpyrifos ( O , O -diethyl O -(3,5,6-trichloro-2-pyridinyl) phosphorothioate; CAS No. 2921-88-2) is a widely used organophosphorus insecticide that is impor- tant for the control of a large number of insect pests of crops. Applications are made to soil or foliage and can occur pre-plant, at-plant, post-plant, or during the dormant season.