Use of chemometric and geostatistical methods to evaluate pesticide pollution in the irrigation and drainage channels of the Ebro river delta during the rice-growing season.
Anal Bioanal Chem
; 387(4): 1479-88, 2007 Feb.
Article
in En
| MEDLINE
| ID: mdl-17226004
ABSTRACT
Data sets obtained from quantitative analysis of seventeen pesticides in water samples from a network of irrigation and drainage channels in the Ebro river delta (Catalonia, NE Spain) have been analysed by chemometric and geostatistical methods. Samples were taken at fourteen locations during the main rice-growing season, from May to August 2005. Principal-component analysis enabled investigation of the spatial and temporal distribution of the main pollution patterns caused by application of pesticides in the region under study. A first pesticide-contamination pattern from the Ebro river was differentiated from a second more specific pattern from the water-drainage channels of the delta, collected from the rice fields. The seasonal peak in this more specific rice pesticide source was observed in July. Coupling the results from chemometric data analysis with use of geostatistical methods was shown to be a useful procedure for discovery of the most significant spatial and monthly variations of the main pesticide-contamination patterns, taking into account the particular geographical structure of the area under study.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pesticides
/
Oryza
/
Water Pollution, Chemical
/
Rivers
Country/Region as subject:
Europa
Language:
En
Journal:
Anal Bioanal Chem
Year:
2007
Document type:
Article
Affiliation country:
Spain
Publication country:
ALEMANHA
/
ALEMANIA
/
DE
/
DEUSTCHLAND
/
GERMANY