Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin
We 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.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2010
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Subjects: | Monitoring, Priority compounds, Water, Principal Component Analysis (PCA), |
Online Access: | http://hdl.handle.net/10261/45112 |
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dig-idaea-es-10261-451122012-02-02T23:00:00Z Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin Navarro-Ortega, Alícia Lacorte Bruguera, Silvia Tauler, Romà Barceló, Damià Monitoring Priority compounds Water Principal Component Analysis (PCA) We 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. We are indebted to Marta Terrado for performing GIS maps of the sampling area. The authors also thank Dr. Roser Chaler, Dori Fanjul and Alain Hildebrandt for their assistance with GC–MS. This research project was founded by the European Union under the Global Change and Ecosystems (FP6) Water Cycle and Soil Related Aspects (AquaTerra, Project Number 505428 GOCE). Financial support from Spanish Ministry of Education and Science, Project Number CTM2005-25168-E. Alícia Navarro acknowledges the support by a grant of the Departament d’Universitats, Recerca i Societat de la Informació de la Generalitat de Catalunya (2004FI 00856). This work reflects only authors’ views and the European Community is not liable for any use that may be made of the information contained. Peer reviewed 2012-02-03T09:14:41Z 2012-02-03T09:14:41Z 2010 artículo http://purl.org/coar/resource_type/c_6501 Journal of Hydrology 0022-1694 http://hdl.handle.net/10261/45112 10.1016/j.jhydrol.2009.06.039 en http://dx.doi.org/10.1016/j.jhydrol.2009.06.039 none Elsevier |
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Monitoring Priority compounds Water Principal Component Analysis (PCA) Monitoring Priority compounds Water Principal Component Analysis (PCA) Navarro-Ortega, Alícia Lacorte Bruguera, Silvia Tauler, Romà Barceló, Damià Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin |
description |
We 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. |
format |
artículo |
topic_facet |
Monitoring Priority compounds Water Principal Component Analysis (PCA) |
author |
Navarro-Ortega, Alícia Lacorte Bruguera, Silvia Tauler, Romà Barceló, Damià |
author_facet |
Navarro-Ortega, Alícia Lacorte Bruguera, Silvia Tauler, Romà Barceló, Damià |
author_sort |
Navarro-Ortega, Alícia |
title |
Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin |
title_short |
Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin |
title_full |
Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin |
title_fullStr |
Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin |
title_full_unstemmed |
Occurrence and transport of pesticides and alkylphenols in water samples along the Ebro River Basin |
title_sort |
occurrence and transport of pesticides and alkylphenols in water samples along the ebro river basin |
publisher |
Elsevier |
publishDate |
2010 |
url |
http://hdl.handle.net/10261/45112 |
work_keys_str_mv |
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1777669216364658688 |