Record Display for the EPA National Library Catalog

RECORD NUMBER: 15 OF 190

OLS Field Name OLS Field Data
Main Title Biotransformation Rates of the Butoxyethyl Ester of 2,4-D by Bottom and Surface Aufwuchs.
Author Kollig, H. P. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1985
Report Number EPA/600/J-85/432;
Stock Number PB86-217023
Additional Subjects Biodeterioration ; Water pollution ; Microorganisms ; Chlorine aromatic compounds ; Reaction kinetics ; Rivers ; Ponds ; Reprints ; Butoxyethanol ester ; D 2-4 herbicide ; Acetic acid/dichlorophenoxy ; Xenobiotics ; Aufwuchs
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-217023 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 11p
Abstract
An experiment was conducted to investigate the variability in biotransformation rate coefficients of a xenobiotic, the butoxyethyl ester of 2,4-D, in natural waters between aufwuchs grown on Teflon strips located on the bottom and at the water surface of a pond and a river. The colonized strips and the natural waters were transported to the laboratory where the biotransformation studies were done under controlled conditions. Statistical analyses applied to the first-order rate coefficients showed a significant difference between bottom and surface aufwuchs for the river only. For both pond and river, a significant difference was shown when the aufwuchs was suspended, however. The aufwuchs mat thickness was significantly different between bottom and surface for the pond but not for the river and the biomass as ashfree dry weight was significantly different for both water bodies. The variability of biomass and first-order rate coefficients was higher with the bottom colonized aufwuchs than with the surface colonized aufwuchs.