ABSTRACT
Diazinon’s release to the environment will result from its manufacture and use as a non-systemic insecticide used principally on rice, fruit trees, vineyards, sugarcane, corn, tobacco, potatoes and horticultural crops and in pest control strips. The persistence of diazinon applied at recommended rates is reported to be 10-12 weeks in most soils. Exposure to diazinon will occur through the ingestion of contaminated water and food and the inhalation of contaminated air. Diazinon is a non-systemic insecticide used principally on rice, fruit trees, vineyards, sugarcane, com, tobacco, potatoes and horticultural crops. Cupric ion acts as an effective catalyst for the hydrolysis of diazinon. Photolytic degradation of diazinon was catalyzed by anthraquinone and to a lesser extent by pentachlorophenol. Volatilization of diazinon from surfaces may be important based upon the observed 95% volatilization loss of diazinon from a glass dish surface when air was passed over it at 20 L/min.
