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Title

Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin

AuthorsNavarro-Ortega, Alícia; Lacorte Bruguera, Silvia; Tauler, Romà; Barceló, Damià
KeywordsMonitoring
Priority compounds
Water
Principal Component Analysis (PCA)
Issue Date2010
PublisherElsevier
CitationJournal of Hydrology
AbstractWe report the temporal and geographical variations of a set of 30 pesticides (including triazines, organophosphorus and acetanilides) and industrial compounds in surface waters along the Ebro River during the period 2004–2006. Using descriptive statistics we found that the compounds with industrial origin (tributylphosphate, octylphenol and nonylphenol) appeared in over 60% of the samples analyzed and at very high concentrations, while pesticides had a point source origin in the Ebro delta area and overall low-levels, between 0.005 and 2.575 μg L−1. Correlations among pollutants and their distributions were studied using Principal Component Analysis (PCA), a multivariate exploratory data analysis technique which permitted us to discern between agricultural and industrial source contamination. Over a 3 years period a seasonal trend revealed highest concentrations of pesticides over the spring–summer period following pesticide application.
Publisher version (URL)http://dx.doi.org/10.1016/j.jhydrol.2009.06.039
URIhttp://hdl.handle.net/10261/45112
DOI10.1016/j.jhydrol.2009.06.039
ISSN0022-1694
Appears in Collections:(IDAEA) Artículos
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