کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8871433 1622706 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heavy metal fractionation and ecological risk implications in the intertidal surface sediments of Zhelin Bay, South China
ترجمه فارسی عنوان
تقسیم بندی فلزات سنگین و پیامدهای خطر زیست محیطی در رسوبات سطحی بین زلین خلیج جنوب چین
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
Intertidal surface sediments collected from Zhelin Bay, the largest mariculture base of eastern Guangdong Province of China, were analyzed for total metal concentrations and chemical speciation. Average total metal concentrations (mg/kg) were 0.063 (Cd), 35.69 (Pb), 23.07 (Cr), 7.50 (Ni), 7.95 (Cu), 74.95 (Zn), and 751.32 (Mn). Concentrations of Cd, Cu, Zn, and Mn were significantly higher than the corresponding background values of Zhelin Bay. All studied metals were dominated by residual fractions, whereas the second relatively higher average portions of Cd (24.10%) and Mn (15.17%) were strongly associated with the acid-soluble fraction. Overall, the intertidal surface sediments of Zhelin Bay were only slightly polluted based on the pollution load index (PLI), with a 21% probability of toxicity based on the mean effects range-median quotient. The metals Cd and Mn posed medium to high risk levels based on the method of risk assessment code (RAC).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 129, Issue 2, April 2018, Pages 905-912
نویسندگان
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