Record Display for the EPA National Library Catalog

RECORD NUMBER: 22 OF 24

OLS Field Name OLS Field Data
Main Title Treating Soil Solution Samplers to Prevent Microbial Removal of Analytes.
Author Lewis, D. L. ; Simons, A. P. ; Moore, W. B. ; Gattie., D. K. ;
CORP Author Environmental Research Lab., Athens, GA. ;Technology Applications, Inc., Athens, GA. ;Georgia Univ., Athens. Inst. of Ecology. ;Florida State Dept. of Agriculture and Consumer Services, Tallahassee. ;Florida State Dept. of Environmental Regulation, Tallahassee.
Publisher c1992
Year Published 1992
Report Number EPA/600/J-92/126;
Stock Number PB92-166610
Additional Subjects Soil microbiology ; Biocides ; Pesticides ; Microbial colony count ; Field tests ; Copper ; Samplers ; Water pollutants ; Industrial wastes ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB92-166610 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 08/22/1992
Collation 7p
Abstract
Soil microorganisms colonizing soil water sampling devices (lysimeters) reduced concentrations of biodegradable organic chemicals, including 2,4-dichlorophenoxyacetic acid methyl ester, alachlor, methyl m-chlorobenzoate, and metolachlor as water entered through porous ceramic cups. In some cases, losses exceeded 99%. Additions of either a biocide (sodium hypochlorite) or a bacteriostat (copper salt) prevented microbial activity so that concentrations of test chemicals inside lysimeters equaled those outside. Field studies further indicated that treating lysimeters with a copper salt effectively prevented microbial activity. Thus, chemically treating soil water samplers could improve the accuracy of soil water data for a wide variety of analytes, including environmentally important organics, such as pesticides and industrial wastes, and inorganics, such as ammonia and nitrate. (Copyright (c) 1992, American Society for Microbiology.)