Monitoring agricultural insecticides in the cooperative cotton pest management program in Arizona, 1971--first-year study.

A county-wide pest management program was initiated in Pinal County, Ariz, in 1971 to improve ecologically, economically, and socially the system for protecting cotton from insect pests. In cluded in this program was a plan to determine the environmental impact of any resulting pesticide load in the environment. Monitoring studies were developed for the assay of insecticide residues in soil, sediment, water, and biological materials. This report presents results of the first year's study and analytical methodology used to achieve those results.