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Organochlorines in harbour porpoises (Phocoena phocoena) stranded along the southern North Sea between 2010 and 2013
Mahfouz, C; Henry, F; Jauniaux, T.; Khalaf, G; Amara, R (2014). Organochlorines in harbour porpoises (Phocoena phocoena) stranded along the southern North Sea between 2010 and 2013. Environ. Sci. Process. Impacts 16(12): 2774-2781. https://dx.doi.org/10.1039/c4em00490f
In: Environmental Science: Processes & Impacts. RSC Publishing: Cambridge. ISSN 2050-7887; e-ISSN 2050-7895, meer
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Phocoena phocoena (Linnaeus, 1758) [WoRMS]
Marien/Kust |
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- Mahfouz, C
- Henry, F
- Jauniaux, T., meer
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| Abstract |
7 polychlorinated biphenyls (PCBs), 6 dichlorodiphenyltrichloroethanes (DDXs) and 8 polybrominated diphenyl ethers (PBDEs) were measured in the blubber of 20 harbour porpoises stranded on the coasts of the southern North Sea between 2010 and 2013. The results showed that porpoises that died from infectious diseases displayed significantly higher levels of PCBs in their blubber compared to healthy porpoises that died from physical trauma. Sigma 7CBs and Sigma DDXs were higher in juvenile porpoises compared to adult females. Except for three individuals, PBDE concentrations were below the limit of quantification in the blubber samples treated. In general, levels of PCBs and DDXs obtained in the blubber of porpoises from this study were in the same order of magnitude or even lower than those obtained in the blubber of porpoises stranded along the North East Atlantic Ocean and the Black Sea over the period 1987 and 2013. The results of the present study suggest that even if the status of marine pollution has been improved, a continuous long-term contamination by toxic organochlorines over many generations may be observed. |
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