Polycyclic aromatic hydrocarbons and polychlorinated biphenyls in coastal environments of valdivia and valparaíso, chile
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HERNÁN PALMA-FLEMING [1] ; CARLOS CORNEJO [1] ; MYRIAM GONZÁLEZ [2] ; VIVIANA PÉREZ [2] ; MARTA GONZÁLEZ [2] ; ELENA GUTIERREZ [1] ; JOSÉ LUIS SERICANO [3] ; MICHAEL SEEGER [2]
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[1] Universidad Austral de Chile
Universidad Austral de Chile
Valdivia, Chile
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[2] Universidad Técnica Federico Santa Maria Millennium Nucleus of Microbial Ecology and Environmental Microbiology and Biotechnology Departamento de Química
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[3] Texas A & M University Geochemical & Environmental Research Group
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- Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 53, Nº. 2, 2008, págs. 1533-1538
- Idioma: inglés
- Enlaces
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Resumen
PAHs and PCBs were measured in the mussel Perumytilus purpuratus (Lamarck) collected from three different sites along the coast of Valdivia and Valparaiso, South-Central and Central Chile, respectively. Pollution at these sites is considered low with PAHs originating mainly from pyrolytic sources according to the Phenanthrene/Anthracene and Fluoranthene/Pyrene ratios. Temporal variation of PAHs was observed in Valdivia, while site variation was observed along the Valparaiso area. Total PAH concentrations in Valdivia ranged from 29.2 ng/gto 89.5 ng/g in 2001 and from 31.0 ng/g to 48.6 ng/g in 2002 while in Valparaiso samples the total PAHs ranged from 27.3 ng/gto 253.1 ng/g and from 12.1 ng/gto 26.3 ng/g in 2001 and 2002, respectively. Polychlorinated biphenyls were not found in mussels from Valdivia; however five non-planar congeners were detected in samples from Valparaiso with total concentrations between 1.0 ng/g and 16.6 ng/g in 2001 and between 3.4 ng/g and 29.0 ng/g in 2002. The pesticide heptachlor epoxide was detected in all sampling sites of Valdivia during the years 2001-2002 at concentrations ranging between 1 and 3.5 ng/g.
