Record Display for the EPA National Library Catalog


Main Title Effects of Kepone on Estuarine Microorganisms.
Author Bourquin, A. W. ; Pritchard, P. H. ; Mahaffey, W. R. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL.
Year Published 1978
Report Number EPA/600/J-78/075;
Stock Number PB-290 049
Additional Subjects Insecticides ; Pesticides ; Toxicology ; Chlorine organic compounds ; Estuaries ; Microorganisms ; Growth ; Concentration(Composition) ; Inhibitors ; Sediments ; Toxic tolerances ; Cells(Biology) ; Morphology ; Experimental data ; Kepone ; Cyclobutapentalenone/decachlorooctahydro ; Water pollution effects(Animals) ; Oxygen uptake ; Reprints ; Toxic substances
Library Call Number Additional Info Location Last
NTIS  PB-290 049 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Low concentration of the insecticide Kepone, approaching those found in contaminated James River sediment, were shown to be inhibitory to the growth and oxygen uptake of microorganisms randomly selected from estuarine environments. No significant correlations were noted between growth inhibition by Kepone and cell morphology, aliphatic hydrocarbon utilization, pesticide tolerance, selected enzyme activities, nitrate reduction, and urea hydrolysis. Oxygen uptake by pure cultures grown on glucose or hydrocarbons at cell densities equivalent to 1,000-10,000 cells/ml was decreased by 60-100% at Kepone concentration of 0.02-2.0 mg/liter. Total viable counts from estuarine water or sediments grown aerobically on agar media containing 0.02 mg/liter Kepone were reduced by 8-78%. The inhibitory effect was eliminated partially when sediment populations were grown anaerobically.