دانلود مقاله ISI انگلیسی شماره 69695
ترجمه فارسی عنوان مقاله

آلودگی، سمیت و تنوع فلزات سنگین در یک رودخانه صنعتی صنعتی: پیامدهای پراکندگی فلزات سنگین

عنوان انگلیسی
Contamination, toxicity and speciation of heavy metals in an industrialized urban river: Implications for the dispersal of heavy metals
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
69695 2016 9 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Marine Pollution Bulletin, Volume 104, Issues 1–2, 15 March 2016, Pages 153–161

ترجمه کلمات کلیدی
آلودگی، پراکندگی، فلز سنگین خاصیت، سمی بودن رودخانه شهری
کلمات کلیدی انگلیسی
Contamination; Dispersal; Heavy metal; Speciation; Toxicity; Urban river

چکیده انگلیسی

Urban rivers are often utilized by the local residents as water source, but they can be polluted by heavy metals due to industrialization. Here, the concentrations, toxicity, speciation and vertical profiles of heavy metals in sediment were examined to evaluate their impact, dispersal and temporal variation in Dongbao River. Results showed that the sediment in the industrialized areas was seriously contaminated with Cr, Cu and Ni which posed acute toxicity. Heavy metals, except Cr and Pb, were mainly associated with non-residual fractions, indicating their high mobility and bioavailability. The non-industrialized areas were also seriously contaminated, suggesting the dispersal of heavy metals along the river. The surface sediment could be more contaminated than the deep sediment, indicating the recent pollution events. Overall, when the point sources are not properly regulated, intense industrialization can cause both serious contamination and dispersal of heavy metals, which have far-reaching consequences in public health and environment.