DDT Residues as a Contaminant in Formulated Sevin and Malathion Samples

Abstract

INTRODUCTIONTHERE are no tolerances established for chlorinated hydrocarbons in poultry and eggs. If an approved poultry pesticide is used that is contaminated with chlorinated hydrocarbons, the birds and eggs might be condemned.Liska et al. (1964) reported that feeding hens less than 0.1 p.p.m. DDT in rations for one month did not cause a serious build up of DDT in tissues and eggs. When 0.5 p.p.m. DDT was present in feed, however, the levels of DDT in both eggs and fat increased sharply.Herrick and Fry (1967) reported that dusting Sevin contaminated with 200 p.p.m. DDT resulted in DDT residues in eggs in excess of the 0.5 p.p.m. working tolerance.The FDA (Bearse, 1966) destroyed 5,000 layers in the mid-west when traces of DDT were found in the eggs. Twenty-nine cases of eggs at Cannon Air Force Base Commissary, Clovis, New Mexico, were found to contain traces of DDT .