Document Detail


Dynamic in-stream fate modeling of xenobiotic organic compounds: a case study of linear alkylbenzene sulfonates in the Lambro River, Italy.
MedLine Citation:
PMID:  15379006     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Using a conceptual hydraulic model, a one-dimensional dynamic river water quality model has been developed to assess the short-term fate of linear alkylbenzene sulfonates (LAS) in the river compartments water and benthic sediment. The model assumes local equilibrium sorption and that both dissolved and sorbed chemical are available for biodegradation. To investigate the interaction of nutrient dynamics and organic contaminant fate, the model is coupled with a basic water quality model. On the basis of the Lambro River (Italy) as a case study, the result shows that the model predictions agree well with the measured data set. The model output sensitivity to model parameters has been tested, and the results depict that the model is highly sensitive to the biodegrading parameters. Also, a comparison of a steady state with a dynamic simulation and the effect of nutrient dynamics on the LAS fate in the Lambro River as a scenario analysis are presented. The results indicate the usefulness of the proposed model for the short-term simulation of organic contaminant fate in unsteady environmental conditions.
Authors:
Tolessa Deksissa; Dirk De Pauw; Peter A Vanrolleghem
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental toxicology and chemistry / SETAC     Volume:  23     ISSN:  0730-7268     ISO Abbreviation:  Environ. Toxicol. Chem.     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-09-21     Completed Date:  2005-04-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8308958     Medline TA:  Environ Toxicol Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2267-78     Citation Subset:  IM    
Affiliation:
Ghent University-BIOMATH, Coupure Links 653, B-9000 Ghent, Belgium. tolessa@biomath.ugent.be
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MeSH Terms
Descriptor/Qualifier:
Alkanesulfonic Acids / analysis*
Biodegradation, Environmental
Computer Simulation
Forecasting
Geologic Sediments / analysis
Italy
Models, Theoretical
Reproducibility of Results
Rivers / chemistry*
Surface-Active Agents / analysis*
Waste Disposal, Fluid / statistics & numerical data
Water Movements*
Water Pollutants, Chemical / analysis*
Xenobiotics / analysis*
Chemical
Reg. No./Substance:
0/Alkanesulfonic Acids; 0/Surface-Active Agents; 0/Water Pollutants, Chemical; 0/Xenobiotics; 0/alkylbenzyl sulfonic acid

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


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