Contamination level, chemical fraction and ecological risk of heavy metals in sediments from Daya Bay, South China Sea
Liu, JJ; Ni, ZX; Diao, ZH; Hu, YX; Xu, XR; zenghuid86@scsio.ac.cn; xuxr@scsio.ac.cn
2018
发表期刊MARINE POLLUTION BULLETIN
卷号128页码:132-139
摘要Contamination level, chemical fraction and ecological risk of heavy metals in sediments from Daya Bay (DYB) were conducted in this study. The results revealed that the concentration of Cr, Cu, Zn, As, Cd and Pb in sediments were in the range of 36.38-90.33, 9.54-61.32, 33.54-207.33, 7.80-18.43, 0.13-0.43 and 15.89-30.01 mg kg(-1), respectively, with bioavailable fractions of 13.29, 54.16, 47.60, 32.74, 68.14, 26.59%, respectively. A modified potential ecological risk index (MRI) was used for the ecological risk assessment, with ecological risk contribution ratios of 75.73, 14.29, 5.47, 1.74, 1.57 and 1.21% for Cd, As, Cu, Cr, Pb and Zn, respectively. The main contaminants were Cd and As, with their ecological risks "High" and "Moderate" levels, and their enrichment degrees "Moderately Severe" and "Moderate", respectively. The multivariate statistical analysis suggested that the various anthropogenic activities along the bay might contribute mainly to the heavy metals contamination in DYB.
部门归属[Liu, Jin-Jun; Ni, Zhi-Xin; Diao, Zeng-Hui; Hu, Yong-Xia; Xu, Xiang-Rong] Chinese Acad Sci, South China Sea Inst Oceanol, Guangdong Prov Key Lab Appl Marine Biol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China; [Liu, Jin-Jun; Ni, Zhi-Xin; Hu, Yong-Xia] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Ni, Zhi-Xin] State Ocean Adm, South China Sea Environm Monitoring Ctr, South China Sea Branch, Guangzhou 510300, Guangdong, Peoples R China
学科领域Environmental Sciences & Ecology ; Marine & Freshwater Biology
关键词[WOS]Heavy metals contamination ; Chemical fractions ; Ecological risk ; Sediments ; Daya bay
资助项目LMB
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16989
专题中科院海洋生物资源可持续利用重点实验室
通讯作者zenghuid86@scsio.ac.cn; xuxr@scsio.ac.cn
推荐引用方式
GB/T 7714
Liu, JJ,Ni, ZX,Diao, ZH,et al. Contamination level, chemical fraction and ecological risk of heavy metals in sediments from Daya Bay, South China Sea[J]. MARINE POLLUTION BULLETIN,2018,128:132-139.
APA Liu, JJ.,Ni, ZX.,Diao, ZH.,Hu, YX.,Xu, XR.,...&xuxr@scsio.ac.cn.(2018).Contamination level, chemical fraction and ecological risk of heavy metals in sediments from Daya Bay, South China Sea.MARINE POLLUTION BULLETIN,128,132-139.
MLA Liu, JJ,et al."Contamination level, chemical fraction and ecological risk of heavy metals in sediments from Daya Bay, South China Sea".MARINE POLLUTION BULLETIN 128(2018):132-139.
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