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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
Source PublicationMARINE POLLUTION BULLETIN
Volume128Pages:132-139
AbstractContamination 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.
Department[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
Subject AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS KeywordHeavy metals contamination ; Chemical fractions ; Ecological risk ; Sediments ; Daya bay
Funding ProjectLMB
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/16989
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authorzenghuid86@scsio.ac.cn; xuxr@scsio.ac.cn
Recommended Citation
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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