Document Detail


Factorial Kriging Analysis as a tool for explaining the complex spatial distribution of metals in sediments.
MedLine Citation:
PMID:  20000849     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Rivers flowing through urbanized and industrial areas are usually greatly damaged by anthropogenic activities discharging contaminants. Characterizing the spatial distribution of pollutants in sediments is of high importance for selecting a suitable remediation operation, but is a complex task because this spatial variability is the result of various physical and chemical mechanisms occurring at different scales. Factorial Kriging Analysis (FKA) was applied on data collected in a canalized river (Scarpe, France) for that purpose, because this geostatistical technique allows to decompose a given variable into components of different spatial correlations and map them separately. This decomposition is meaningful provided that it can be related to physical phenomena occurring at the identified spatial scales. FKA applied to Cd and Zn concentrations in sediments of the Scarpe river proved to be effective, allowing their mapping to be decomposed in a first map related to a short-range spatial correlation corresponding to hot spots interpreted as the impact of industrial and urban inputs located along the canal, and a second map related to a long-range spatial variability associated with long pollutant plumes interpreted as the effect of one major upstream pollutant input.
Authors:
Claire Alary; H?l?ne Demougeot-Renard
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  44     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-01-13     Completed Date:  2010-03-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  593-9     Citation Subset:  IM    
Affiliation:
Univ Lille Nord de France, 59000, Lille, France. alary@ensm-douai.fr
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MeSH Terms
Descriptor/Qualifier:
Environmental Monitoring / methods*
Geologic Sediments / chemistry*
Metals / chemistry*
Rivers
Water Pollutants, Chemical / chemistry*
Chemical
Reg. No./Substance:
0/Metals; 0/Water Pollutants, Chemical

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


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