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
作者: Gu, Yang-Guang 1 ; Jiang, Shi-Jun 3 ; Lin, Qin 1 ; Du, Fei-Yan 1 ; Zhang, Lin-Bao 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China
2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
3.Jinan Univ, Guangdong Higher Educ Inst, Key Lab Eutr
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:
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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.
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