Record Display for the EPA National Library Catalog

RECORD NUMBER: 12 OF 19

OLS Field Name OLS Field Data
Main Title Fate of Methyl Parathion in Aquatic Channel Microcosms.
Author Holm, H. W. ; Kollig, H. P. ; Payne, Jr., W. R. ; Proctor, L. M. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1983
Report Number EPA-600/J-83-092;
Stock Number PB84-116219
Additional Subjects Water pollution ; Pesticides ; Transport properties ; Ecology ; Sediments ; Reaction kinetics ; Biomass ; Nitrogen organic compounds ; Degradation ; Nutrients ; Reprints ; Methyl parathion ; Path of pollutants ; Phosphorothioic acid/(dimethyl-ester)-(nitrophenyl-ester) ; Microcosms ; Toxic substances ; Ecosystems ; Aufwuchs
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB84-116219 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 10p
Abstract
The fate of methyl parathion and the development of biological communities were examined as a function of inorganic nutrient enrichment, inorganic nutrients plus glycerol and presence of sediments in two eight-compartment, continuous-flow microcosms. First-order degradation rates of methyl parathion were related to the different nutrient treatments, with higher rates associated with the organically enriched environments. A stable state was generally established in each compartment after six weeks of development. Aufwuchs biomass dominated the systems and observed differences (alpha=0.10) in nutrient concentrations were reflected by differences (alpha=0.05) in some aufwuchs structural parameters and in community function. Inclusion of sediments had no significant effect on any of the parameters measured.