کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6357623 | 1622741 | 2014 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
History of bioavailable lead and iron in the Greater North Sea and Iceland during the last millennium - A bivalve sclerochronological reconstruction
ترجمه فارسی عنوان
تاریخچه سرب آهن و آهن موجود در دریای بزرگ شمال و ایسلند در هزاره گذشته - بازسازی اسکلرچرونولوژیک دوغاله
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
We present the first annually resolved record of biologically available Pb and Fe in the Greater North Sea and Iceland during 1040-2004 AD based on shells of the long-lived marine bivalve Arctica islandica. The iron content in pre-industrial shells from the North Sea largely remained below the detection limit. Only since 1830, shell Fe levels rose gradually reflecting the combined effect of increased terrestrial runoff of iron-bearing sediments and eutrophication. Although the lead gasoline peak of the 20th century was well recorded by the shells, bivalves that lived during the medieval heyday of metallurgy showed four-fold higher shell Pb levels than modern specimens. Presumably, pre-industrial bivalves were offered larger proportions of resuspended (Pb-enriched) organics, whereas modern specimens receive fresh increased amounts of (Pb-depleted) phytoplankton. As expected, metal loads in the shells from Iceland were much lower. Our study confirms that bivalve shells provide a powerful tool for retrospective environmental biomonitoring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 87, Issues 1â2, 15 October 2014, Pages 104-116
Journal: Marine Pollution Bulletin - Volume 87, Issues 1â2, 15 October 2014, Pages 104-116
نویسندگان
Hilmar A. Holland, Bernd R. Schöne, Soraya Marali, Klaus P. Jochum,