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Levels and bioaccumulation of organochlorine pesticides (OCPs) and polybrominated diphenyl ethers (PBDEs) in fishes from the Pearl River estuary and Daya Bay, South China.
Guo, Lingli; Qiu, Yaowen; Zhang, Gan; Zheng, Gene J; Lam, Paul K S; Li, Xiangdong.
Afiliación
  • Guo L; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China.
Environ Pollut ; 152(3): 604-11, 2008 Apr.
Article en En | MEDLINE | ID: mdl-17703857
Fifty fish samples were collected from the Pearl River estuary (PRE) and Daya Bay, South China and were analyzed for DDTs, HCHs, chlordanes and polybrominated biphenyl ethers (PBDEs). Except the high concentrations of DDT observed in fishes, the concentrations of HCHs, chlordanes and PBDEs were low when compared to other regions. BDE-47 was the predominant PBDE congener and the BDE-209 concentrations were relatively low, despite its high concentration in surface sediments. The absence of significant increase of DDT, HCH, chlordane and PBDE concentrations towards higher delta15N values, as well as the lack of a significant correlation (p<0.1) between log concentrations (lipid normalized) and delta15N, may indicate a weak biomagnification of these chemicals in the food webs. Good agreement was observed between their concentrations and lipid contents of the organisms. Bioconcentration was suggested to be responsible for the accumulation of OCPs and PBDEs in the lower trophic organisms in the studied subtropical waters.
Asunto(s)
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Base de datos: MEDLINE Asunto principal: Éteres Fenílicos / Contaminantes Químicos del Agua / Residuos de Plaguicidas / Bifenilos Polibrominados / Peces / Hidrocarburos Clorados Límite: Animals / Humans País/Región como asunto: Asia Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2008 Tipo del documento: Article País de afiliación: China
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Base de datos: MEDLINE Asunto principal: Éteres Fenílicos / Contaminantes Químicos del Agua / Residuos de Plaguicidas / Bifenilos Polibrominados / Peces / Hidrocarburos Clorados Límite: Animals / Humans País/Región como asunto: Asia Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2008 Tipo del documento: Article País de afiliación: China