Document Detail


Fate of seven pesticides in an aerobic aquifer studied in column experiments.
MedLine Citation:
PMID:  11057587     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The fate of selected pesticides (bentazone, isoproturon, DNOC, MCPP, dichlorprop and 2,4-D) and a metabolite (2,6-dichlorobenzamide (BAM)) was investigated under aerobic conditions in column experiments using aquifer material and low concentrations of pesticides (approximately 25 microg/l). A solute transport model accounting for kinetic sorption and degradation was used to estimate sorption and degradation parameters. Isoproturon and DNOC were significantly retarded by sorption, whereas the retardation of the phenoxy acids (MCPP, 2,4-D and dichlorprop), BAM and bentazone was very low. After lag periods of 16-33 days for the phenoxy acids and 80 days for DNOC, these pesticides were degraded quickly with 0.-order rate constants of 1.3-2.6 microg/l/day. None of the most probable degradation products were detected.
Authors:
N Tuxen; P L Tüchsen; K Rügge; H J Albrechtsen; P L Bjerg
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemosphere     Volume:  41     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2000-11-02     Completed Date:  2000-11-09     Revised Date:  2013-01-28    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1485-94     Citation Subset:  IM    
Affiliation:
Department of Environmental Science and Engineering, Technical University of Denmark, Lyngby. nit@imt.dtu.dk
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MeSH Terms
Descriptor/Qualifier:
2,4-Dichlorophenoxyacetic Acid / analogs & derivatives*,  chemistry
Adsorption
Aerobiosis
Benzamides / chemistry
Benzothiadiazines / chemistry
Chemistry, Physical
Dinitrocresols / chemistry
Kinetics
Methylurea Compounds / chemistry
Pesticides / chemistry*
Phenylurea Compounds*
Physicochemical Phenomena
Chemical
Reg. No./Substance:
0/Benzamides; 0/Benzothiadiazines; 0/Dinitrocresols; 0/Methylurea Compounds; 0/Pesticides; 0/Phenylurea Compounds; 1604ZJR09T/4,6-dinitro-o-cresol; 2008-58-4/2,6-dichlorobenzamide; 66066K098P/isoproturon; 94-75-7/2,4-Dichlorophenoxyacetic Acid; J7YV2RKO6Q/dichlorprop; R4S7ZGZ9CT/bentazone
Comments/Corrections
Erratum In:
Chemosphere 2001 Mar;42(8):993-4

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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