کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6330620 1619784 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An assessment of contaminant concentrations in toothed whale species of the NW Iberian Peninsula: Part I. Persistent organic pollutants
ترجمه فارسی عنوان
ارزیابی غلظت آلودگی در گونه های دندانی نهنگ شبه جزیره نیویورک: قسمت اول آلاینده های مضر آلی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


- POPs were measured in toothed whales from the NW Iberian Peninsula.
- Bottlenose dolphin and harbour porpoise showed the greatest PCB concentrations.
- The POP levels were higher than in the South Atlantic and Pacific Oceans.

Concentrations and patterns of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in the blubber of the five most common toothed whales off the Northwest Iberian Peninsula (NWIP), specifically common dolphin, long-finned pilot whale, harbour porpoise, striped dolphin and bottlenose dolphin, were investigated. The study revealed that differences in PCB and PBDE concentrations among the species are highly dependent on age and sex but also on ecological factors such as trophic level, prey type and habitat. Of the five species studied, bottlenose dolphin and harbour porpoise showed the greatest concentrations of PCBs. Both species exceed the toxic threshold of 17 μg g− 1 lipid weight (PCB Aroclor equivalent) for health effects on marine mammals, for 100% and 75% of the individuals tested, respectively. Overall, the PCB and PBDE levels observed in the NWIP toothed whales were of the same order of magnitude or lower than those reported by previous studies in areas of the NE Atlantic. However, they are often higher than those for toothed whales from the southern Atlantic and Pacific Ocean.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 484, 15 June 2014, Pages 196-205
نویسندگان
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