Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Residues of Parathion and Conversion Products on Apple and Peach Foliage Resulting from Repeated Spray Applications.
Author Staiff, D. C. ; Comer, S. W. ; Foster., R. J. ;
CORP Author Pesticides and Toxic Substances Effects Lab., Wenatchee, Wash. Field Studies Section.;Washington State Univ., Pullman. Dept. of Agricultural Chemistry.
Year Published 1975
Stock Number PB-254 267
Additional Subjects Toxicity ; Pesticides ; Industrial medicine ; Insecticides ; Phosphorus organic compounds ; Toxicology ; Personnel ; Agriculture ; Spraying ; Residues ; Exposure ; Parathion ; Occupational safety and health ; Environmental health ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB-254 267 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 6p
Recently there has been increased concern about hazard to crop workers who enter fields or orchards following application of pesticides. In past years one of the more toxic organophosphorus pesticides, parathion (O,O-diethyl O-p-nitrophenyl phosphorothioate) has, on rare occasions, caused illness in workers exposed to residues during hand fruit thinning operations in apple orchards in the State of Washington (QUINBY and LEMMON 1958). The purpose of the present study was to determine if there is any increase in residue levels of parathion or more toxic conversion products as a result of repeated weekly applications to apple and peach trees. Alterations of parathion by photochemical, hydrolytic, and metabolic processes might lead to increased hazard to crop workers who have intimate contact with treated foliage.