Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Transport and Fate of Organophosphate Insecticides in a Laboratory Model Ecosystem.
Author Gile, Jay D. ; Gillett, James W. ;
CORP Author National Heart, Lung, and Blood Inst., Bethesda, MD.
Year Published 1981
Report Number EPA-600/J-81-399;
Stock Number PB82-126301
Additional Subjects Organic phosphates ; Insecticides ; Isotopic labeling ; Carbon 14 ; Nitrophenols ; Soils ; Dieldrin ; Concentration(Composition) ; Pesticides ; Transport properties ; Standards ; Reprints ; Path of pollutants ; Methyl parathion ; Parathion
Library Call Number Additional Info Location Last
NTIS  PB82-126301 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 8p
The disposition of 14C-labeled methylparathion, parathion, and p-nitrophenol applied as a foliar spray was examined in the Terrestrial Microcosm Chamber (TMC) and compared to a reference compound, dieldrin. The impact of soil type (synthetic vs natural) and airflow rates through the camber on methylparathion disposition were evaluated. The TMC contained either a synthetic soil medium or Willamette sandy loam soil plus agricultural crops, numerous invertebrates, and a gravid gray-tailed vole (Microtus canicaudus). Dieldrin was accumulated to a lesser extent than any of the organophosphates in the synthetic soil. Concentrations of methylparathion in the upper layer of Willamette sandy loam soil were consistently lower than those observed with the synthetic medium. Increased airflows altered methylparathion distribution primarily through increased export from the TMC. Although recovery of dieldrin was lower than with equivalent applications of organophosphates, a significantly greater concentration was detected in the vole. Only dieldrin appeared to affect vole survival.