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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

Autor Terrado Casanovas, Marta; Kuster, Marina; Raldúa, Demetrio; López de Alda, Miren; Barceló, Damià; Tauler, Romà
Palabras clave Pesticides
Ebro river delta
Fecha de publicación 17-ene-2007
Citación Analytical and Bioanalytical Chemistry 387(4): 1479-1488 (2007)
ResumenData 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.
Descripción 10 pages, 7 figures, 1 table.-- PMID: 17226004 [PubMed].-- Printed version published Feb 2007.
Versión del editorhttp://dx.doi.org/10.1007/s00216-006-1038-5
URI http://hdl.handle.net/10261/10693
ISSN1618-2642 (Print)
1618-2650 (Online)
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