SPATIAL, SOURCE, AND RISK ASSESSMENT OF HEAVY METALS IN SEDIMENTS FROM THE BIGGEST MARICULTURE BASE OF EASTERN GUANGDONG COAST, CHINA

文献类型： 外文期刊

第一作者： Gu, Yang-Guang

作者： Gu, Yang-Guang;Lin, Qin;Du, Fei-Yan;Zhang, Lin-Bao;Gu, Yang-Guang;Lin, Qin;Du, Fei-Yan;Zhang, Lin-Bao;Jiang, Shi-Jun

作者机构：

关键词： Heavy metals;spatial pattern;mariculture sediments;risk assessment

期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Heavy metals in sediments from Zhelin Bay and its vicinity, the biggest mariculture base of eastern Guangdong Province in South China, were investigated. The results demonstrated that the concentration (mg/kg) ranges were 0.04-0.14 for Cd, 14.00-167.00 for Pb, 35.00-97.33 for Cr, and 20.67-52.67 for Ni, respectively. These metals exhibited great spatial variations with the most serious contaminations found in or very close to the Han River. A principal components analysis (PCA) coupled with correlation analysis revealed that Pb and Cr levels might originate from lithogenic source, whereas Cd and Ni may have an anthropogenic origin related to industrial and agricultural sources. In general, surface sediments of Zhelin Bay and its vicinity had a 21% probability of toxicity based on the mean effects range-median quotient.

分类号： X

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