An investigation of residues of some pesticides used in Elazığ

In this study, the effects of UV light and evaporation on the residues of acephate and phorate pesticides which have been used recently in agricultural land in Elazığ were investigated. The insecticides of acephate and phorate were exposed to different temperatures and UV light in dark ambience. Phorate insufficiently decreased by volatilisation through temperature of 30°C and sufficiently decreased by decomposition under the UV light associated with the same temperature. Acephate decreased significantly at 40 °C and uncovered ambience and decreased at low level under temperature of 30 °C and covered ambience. With the effect of UV light at 30 °C, it was observed that acephate decreased in the maximum level. The all of acephate in the uncovered ambience and temperature of 40°C was degraded and changed to its metabolite after 4 th. day. KEY WORDS: Insecticide, Acephate, Phorate, Decomposition, Ultraviolet light, Residue