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Main Title Adsorption, movement, and biological degradation of large concentrations of selected pesticides in soils /
Author Davidson, James M.,
Other Authors
Author Title of a Work
Davidson, James M.
CORP Author Florida Univ., Gainesville. Dept. of Soil Science.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available through the National Technical Information Service.
Year Published 1980
Report Number EPA-600/2-80-124; EPA-R-803849
Stock Number PB81-111056
OCLC Number 13608486
Subjects Pesticides--Biodegradation--United States ; Pesticides--Environmental aspects--United States ; Soil absorption and adsorption ; Pesticides--United States--Biodegradation
Additional Subjects Pesticides ; Soils ; Water pollution ; Herbicides ; Adsorption ; Biodeterioration ; Concentration(Composition) ; Mobility ; Insecticides ; United States ; Soil chemistry ; Chlorine organic compounds ; Nitrogen organic compounds ; Metabolites ; Atrazine ; Triazine/chloro-ethylamino isopropylamino ; Methyl parathion ; Phosphorothioic acid/O-O-(dimethyl-ester)-O-(nitrophenyl-ester) ; D 2-4 herbicide ; Acetic acid/dichlorophenoxy ; Terbacid ; Uracil/tert-butyl-chloro-methyl ; Trifluration ; Toluidine/dinitro-N-N-dipropyl-rifluoro
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  TD427.P35A37 1980y Region 1 Library/Boston,MA 04/29/2016
EJBD  EPA 600-2-80-124 c.1 Headquarters Library/Washington,DC 11/04/2013
EKBD  EPA-600/2-80-124 Research Triangle Park Library/RTP, NC 07/04/2003
ELBD ARCHIVE EPA 600-2-80-124 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
EMBD  PB81-111056 MF NRMRL/GWERD Library/Ada,OK 09/20/1991
ERAD  EPA 600/2-80-124 Region 9 Library/San Francisco,CA 07/28/1989
NTIS  PB81-111056 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xi, 111 pages : illustrations ; 28 cm.
Because of the importance of soil in biologically reducing the quantity and retarding the rate of pollutant movement into groundwater, this laboratory study was initiated to evaluate the adsorption, mobility, and degradation of large concentrations of the pesticide atrazine, methyl parathion, terbacil, trifluralin, and 2, 4-D in soils representing four major soil orders in the United States. Solution concentrations ranged from zero to the aqueous solubility limit for each pesticide. The mobility of each pesticide increased as its concentration in the soil solution phase increased. These results were in agreement with the adsorption isotherm data. Pesticide degradation rates and soil microbial populations generally declined as the pesticide concentration in soil increased; however, some soils were able to degrade a pesticide at all concentrations studied, while others remained essentially sterile throughout the incubation period (60 to 80 days). As shown by measurements of 14CO2 evolution, total CO2 evolution was not always a good indication of pesticide degradation. Several pesticide metabolites were formed and identified. Bound residues of trifluralin and atrazine at the end of the incubation period appeared to be related to types of metabolites formed. The observed increase in pesticide mobility for large pesticide concentrations in the soil invalidates, in many cases, the usefulness of the existing low concentration data base for designing pesticide waste disposal sites.
Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory, Cincinnati, Ohio, submitted by the University of Florida, Gainesville, under grant no. R-803849. Includes bibliographical references (pages 103-112).