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Título: | Integrated biological and chemical analysis of organochlorine compound pollution and of its biological effects in a riverine system downstream the discharge point |
Autor: | Olivares, Alba CSIC ORCID; Quirós, Laia CSIC; Pelayo, Sergi CSIC; Navarro Cuenca, Anna CSIC; Bosch, Carme CSIC ORCID; Grimalt, Joan O. CSIC ORCID ; Fabregat, M. C. CSIC; Faria, Melissa CSIC ORCID; Solé, Montserrat CSIC ORCID ; Barata Martí, Carlos CSIC ORCID ; Piña, Benjamín CSIC ORCID | Palabras clave: | Multimarker approach Biomonitoring Micronuclei Aryl hydrocarbon receptor Recombinant yeast assay Quantitative real-time PCR |
Fecha de publicación: | 2010 | Editor: | Elsevier | Citación: | Science of The Total Environment 408(22): 5592-5599 (2010) | Resumen: | Pollution in riverine systems, along with its biological effects, may propagate downstream even at considerable distances. We analyzed the organochlorine compound (OC) pollution in a section of the low Ebro River (Northeast Spain) downstream a long-operating chlor-alkali plant. Maximal levels of OCs and of their associated dioxin-like biological activity occurred in residue samples from the plant, and persisted in river sediments some 40 km downstream (Xerta site). Biological analysis at multiple organization levels in local carp (Cyprinus carpio, EROD, Cyp1A mRNA expression in the liver, hepatosomatic index, condition factor, and micronuclei index in peripheral blood) showed a similar pattern, with a maximal impact in Ascó, few kilometers downstream the plant, and a clear reduction at Xerta. This combination of chemical, molecular, cellular and physiological data allowed the precise assessment of the negative impact of the chlor-alkali plant on the quality of river sediments and on fish, and suggests that sediments may be a reservoir for toxic substances even in dynamic environments like rivers. | Descripción: | Olivares, Alba et al. | Versión del editor: | http://dx.doi.org/10.1016/j.scitotenv.2010.08.009 | URI: | http://hdl.handle.net/10261/44998 | DOI: | 10.1016/j.scitotenv.2010.08.009 | ISSN: | 0048-9697 | E-ISSN: | 1879-1026 |
Aparece en las colecciones: | (IDAEA) Artículos (ICM) Artículos |
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