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RECORD NUMBER: 40 OF 80

Main Title Physiochemical Properties as Predictors of Organic Chemical Effects on Soil Microbial Respiration.
Author Walton, B. T. ; Anderson, T. A. ; Hendricks, M. S. ; Talmage, S. S. ;
CORP Author Oak Ridge National Lab., TN. Environmental Sciences Div.;Robert S. Kerr Environmental Research Lab., Ada, OK.;Department of Energy, Washington, DC.
Publisher c1989
Year Published 1989
Report Number DE-AC05-84OR21400; EPA/600/J-89/100;
Stock Number PB90-117185
Additional Subjects Hazardous materials ; Waste disposal ; Physicochemical properties ; Biodeterioration ; Soil microbiology ; Organic compounds ; Reprints ; Structure-activity relationships ; Land pollution ; Toxic substances ; Roane County(Tennessee) ; Stone County(Mississippi)
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NTIS  PB90-117185 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13p
Abstract
Structure-activity analysis was used to evaluate the effects of 19 hazardous organic chemicals on microbial respiration in two slightly acidic soils (a Captina silt loam from Roane County, Tennessee, and a McLaurin sandy loam from Stone County, Mississippi), both low in organic carbon and typical of the southeastern United States. The chemicals included in the study were the following: acrylonitrile, furan, methyl ethyl ketone, tetrahydrofuran, benzene, toluene, 1,2-dichloroethane, p-xylene, chlorobenzene, chloroform, nitrobenzene, trans-1,4-dichloro-2-butene, cis-1,4-dichloro-2-butene, 1,2-dichlorobenzene, 1,2,3-trichloropropane, carbon tetrachloride, 1,2-dibromoethane (ethylene dibromide), 1,2,4,5-tetrachlorobenzene and hexachlorobenzene. Seventeen of the chemicals caused temporary depressions in CO2 efflux in at least one soil, but treatments were not significantly different from controls by the sixth day for most of these compounds, indicating the ability of the microbial community to recover from chemically induced toxicity at this concentration. Acrylonitrile, nitrobenzene, and the 1,4-dichloro-2-butenes caused sustained depressions, whereas methyl ethyl ketone and benzene increased respiration. (Copyright (c) 1989 SETAC.)