کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6333507 1619810 2013 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ReviewWhat are the toxicological effects of mercury in Arctic biota?
ترجمه فارسی عنوان
بررسی اثرات سمی جیوه در زیستگاه قطب شمال چیست؟
کلمات کلیدی
ماهی، پرنده ها، پستانداران، فلزات سنگین، گرفتن در معرض، سطوح آستانه،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی

This review critically evaluates the available mercury (Hg) data in Arctic marine biota and the Inuit population against toxicity threshold values. In particular marine top predators exhibit concentrations of mercury in their tissues and organs that are believed to exceed thresholds for biological effects. Species whose concentrations exceed threshold values include the polar bears (Ursus maritimus), beluga whale (Delphinapterus leucas), pilot whale (Globicephala melas), hooded seal (Cystophora cristata), a few seabird species, and landlocked Arctic char (Salvelinus alpinus). Toothed whales appear to be one of the most vulnerable groups, with high concentrations of mercury recorded in brain tissue with associated signs of neurochemical effects. Evidence of increasing concentrations in mercury in some biota in Arctic Canada and Greenland is therefore a concern with respect to ecosystem health.

► Unpublished and published data were compiled for Arctic fish, birds, and mammals. ► These data were compared to available toxicological threshold limits. ► Toothed whales, polar bears, and some bird and fish species exceeded the limits. ► Increasing mercury concentrations are observed for some Arctic species. ► These exceeded thresholds and increasing Hg trends are of concern.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 443, 15 January 2013, Pages 775-790
نویسندگان
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