ABSTRACT
Azinphosmethyl is used as a nonsystemic insecticide and acaricide on citrus, cotton, grapes, corn, and some ornamentals, top fruit, and vegetables. Biodegradation is probably the most important degradative process for azinphosmethyl in natural waters while chemical hydrolysis is probably not significant except in alkaline waters. Azinphosmethyl is used extensively as an insecticide, acaricide, and moluscicide and therefore shown be released to the environment during use and some releases may result from production, formulation, and disposal. Azinphosmethyl released to waters will have a low to medium tendency to sorb to sediments and suspended solids or to bioconcentrate. The estimated adsorption coefficient for azinphosmethyl is 404 using the water solubility and the recommended regression equation. Humans may be exposed to azinphosmethyl by dermal and inhalation exposure during its use as an insecticide and orally from eating fruits and vegetables that contain it.
