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RECORD NUMBER: 34 OF 94

Main Title Human Subject Experiments to Estimate Reentry Periods for Monocrotophos-Treated Tobacco.
Author Guthrie, F. E. ; Domanski, J. J. ; Chasson, A. L. ; Bradway, D. E. ; Monroe., R. J. ;
CORP Author Health Effects Research Lab., Research Triangle Park, N.C. ;North Carolina State Univ., Raleigh. Dept. of Entomology.
Year Published 1974
Report Number EPA/600/J-76/060;
Stock Number PB-267 872
Additional Subjects Toxicology ; Pesticides ; Insecticides ; Industrial hygiene ; Personnel ; Exposure ; Erythrocytes ; Cholinesterase inhibitors ; Rainfall ; Deposits ; Reentry ; Intervals ; Humans ; Mice ; Laboratory animals ; Experimental data ; Sampling ; Nitrogen organic compounds ; Phosphorous organic compounds ; Reprints ; Agricultural workers ; Pesticide residues ; Occupational safety and health ; Phosphoric acid/dimethyl ; Crotonamide/hydroxy-N-methyl ; Azodrin
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NTIS  PB-267 872 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Abstract Thirteen to fifteen human volunteers worked for eight-hr periods in tobacco fields treated 96, 72, and 48 hr previously with monocrotophos (3-hydroxy-N-methyl-cis-crotonamide dimethyl phosphate). At the 48-hr reentry period, during which time no rainfall occurred, both post-exposure plasma and red blood cell cholinesterase levels of the worker group were depressed from pre-exposure levels although the decline was less than 9% in both cases. Rainfall in excess of one inch fell during the 96- and 72-hr reentry intervals, and no important change in cholinesterase levels was noted. Experiments with mice were in general agreement with the human tests. Dimethyl phosphoric acid in urine of the worker group collected prior to, and three hr after, exposure was unchanged in all cases. Rain appeared to have markedly reduced dislodgable residues.
Supplementary Notes Prepared in cooperation with North Carolina State Univ., Raleigh. Dept. of Entomology.
Availability Notes Pub. in Archives of Environmental Contamination and Toxicology, v4 p217-225 1976.
NTIS Title Notes Journal article.
Title Annotations Reprint: Human Subject Experiments to Estimate Reentry Periods for Monocrotophos-Treated Tobacco.
PUB Date Free Form 7 Oct 74
Category Codes 6T; 6J; 57Y; 57U; 68G; 68E
NTIS Prices Not available NTIS
Primary Description 600/08
Document Type NT
Cataloging Source NTIS/MT
Control Number 323718401
Origin NTIS
Type CAT