کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8966029 | 1646760 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bioavailability, mobility, and origination of metals in sediments from Anzali Wetland, Caspian Sea
ترجمه فارسی عنوان
قابلیت دسترسی بیولوژیک، تحرک و ایجاد فلزات در رسوبات از تالاب انزلی دریای خزر
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کلمات کلیدی
قابلیت دسترسی بیولوژیک، تحرک، فلز، تالاب انزلی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
We investigated the bioavailability, mobility, and origin of heavy metals present in sediments from the Anzali Wetland. Chemical speciation of the metals was performed according to the Tessier method. Results indicated that Cd and As showed the highest level of bioavailability, whereas Cr showed the lowest level. Cr, Co, and V were shown to have a terrestrial origin. The metal As was mostly found in the reducible fraction (F3), whereas other metals were highest in the residual phase. The levels of Co present in the oxidizable fraction (F4); Pb and Cd present in the carbonate fraction (F2); and the other metals present in the exchangeable fraction (F1) were found to be the lowest. On the basis of the Risk Assessment Code of metals, Cd at most stations, As and Ni at some stations, and Zn at one station revealed to have a moderate risk. Co and Pb were found to have a low risk at all stations. Considering Pollution Load Index, stations 2 and 3 were classified as moderately polluted and the remaining stations were unpolluted. As suggested by enrichment factor analysis, As was moderately enriched and other metals had a deficiency to minimal enrichment at all the stations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 136, November 2018, Pages 22-32
Journal: Marine Pollution Bulletin - Volume 136, November 2018, Pages 22-32
نویسندگان
Kazem Darvish Bastami, Mahmoud Reza Neyestani, Neda Molamohyedin, Elnaz Shafeian, Sara Haghparast, Imam Ali Shirzadi, Mehrnaz Baniamam,