Origin and distribution of polycyclic aromatic hydrocarbon pollution in sediment and fish from the biosphere reserve of Urdaibai (Bay of Biscay, Basque country, Spain)
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- 作者：Eunate Puy-Azurmendi ; Asunció ; n Navarro ; Alba Olivares ; Denise Fern ; es ; Elena Martí ; nez ; Miren Ló ; pez de Alda ; Cinta Porte ; Miren P. Cajaraville ; Damià ; Barceló ; Benjamin Piñ
- 关键词：Dioxin-like activity ; Recombinant yeast assay ; GC– ; MS ; PAH metabolites
- 刊名：Marine Environmental Research
- 出版年：2010
- 出版时间：August 2010
- 年：2010
- 卷：70
- 期：2
- 页码：142-149
- 全文大小：487 K
文摘
The Urdaibai estuary is a UNESCO biosphere reserve impacted by recreational, agricultural and industrial activities. Polycyclic aromatic hydrocarbons (PAHs) are major pollutants in Urdaibai, and their control and the identification of their sources is central on the preservation of the area. Chemical analysis by GC–MS showed a significant pollution by PAHs in Urdaibai sediment samples, mainly from pyrolytic sources, with minor contributions from oil spills. Measurement of the dioxin-like activity using a yeast-based bioassay showed an excess of biological activity in sediment samples from the inner part of the estuary. Analysis of PAH metabolites in bile of thicklip grey mullet (Chelon labrosus) showed a large excess of 2-naphthol over 1-naphthol or 1-pyrenol, suggesting a specific contamination in the inner Urdaibai estuary by some industrial process. Therefore, the combination of these three techniques defined different PAH pollution sources in Urdaibai: a major pyrolytic origin, occasional oil spills, and specific industrial activities.