Residues of Shell Compound 4072 in the Body Tissues of Sprayed Cattle

Abstract

Studies were made to determine whether the use of Shell Compound 4072 (2-chlolro-1-(2,4-dichlorophenyl) – vinyl diethyl phosphate) sprayed on cattle at a concentration adequate or insect control would cause residues to accumulate in the body tissues. The low residues of the chemical found in the tissues after spray application were preponderant in the fat and were eliminated in 28 days or less. The tissues were analyzed also for 2, 2', 4'-trichloroacetophenone, a likely metabolite, but no residues of this chemical were detected in any of the body tissues.