Record Display for the EPA National Library Catalog

RECORD NUMBER: 756 OF 1150

OLS Field Name OLS Field Data
Main Title Phenoxyalkanoic Acid Herbicides in Municipal Landfill Leachates.
Author Gintautas, P. A. ; Daniel, S. R. ; Macalady, D. L. ;
CORP Author Colorado School of Mines, Golden. Dept. of Chemistry and Geochemistry.;Environmental Research Lab., Athens, GA.
Publisher c1994
Year Published 1994
Report Number EPA-R-814290; EPA/600/J-94/475;
Stock Number PB95-137378
Additional Subjects Municipal wastes ; Earth fills ; Organic acids ; Herbicides ; Reprints ; Ground water ; Pollution control ; Solid waste disposal ; Acetic acid ; Propionic acid ; Butyric acid ; Chemical analysis ; Phenoxyalkanoic acid ; MCPP(Mecoprop) ; Propionic acid/2-(4-chloro-o-tolyloxy) ; TOC(Total organic carbon) ; Silvex ; 2,4-DB
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB95-137378 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/06/1995
Collation 9p
Abstract
Analysis of leachates from six U.S. municipal landfills revealed the presence of chlorinated 2-phenoxypropionic acid herbicides; however, none of the more widely used acetic acid analogues was present at quantifiable levels. All of the leachates contained Mecoprop (MCPP). 2,4-DP and Silvex were detected in four of the six. The herbicide 2,4-DB was also found in four of the leachates. These compounds persisted in the leachates during 2-3 years of storage while significant depletion of total organic carbon (TOC) in general and of low molecular weight carboxylic acids in particular was observed. Since landfills and leachates are microbially active environments (as demonstrated here by the TOC depletion during storage), this unexpected lack of degradation of several phenoxy herbicides poses concerns for possible groundwater contamination.