Concentrations, Distribution, and Ecological Risk Assessment of Heavy Metals in Daya Bay, China
Tang, HJ; Ke, ZX; Yan, MT; Wang, WJ; Nie, HY; Li, BX; Zhang, JP; Xu, XR; Wang, J; tanghj@scau.edu.cn; kzx@scsio.ac.cn; marineymt@scau.edu.cn; wenjing1379@163.com; hynhy@stu.scau.edu.cn; Liboxing@stu.scau.edu.cn; zhangjingping@scsio.ac.cn; xuxr@scsio.ac.cn; wangjun2016@scau.edu.cn
2018
发表期刊WATER
卷号10期号:6页码:-80
摘要Surface sediment samples were collected from 19 sites throughout Daya Bay, China to study the concentrations, spatial distributions, potential ecological risk, and possible sources of heavy, including metals copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), nickel (Ni), lead (Pb), mercury (Hg), and chromium (Cr). The mean concentrations of the eight heavy metals were 24, 109, 6.5, 0.09, 35.3, 26.8, 0.07, and 109 mu g g(-1), respectively. The concentrations of most heavy metals were within range of those recorded in previous years. The spatial distribution pattern of most heavy metals were similar, with lowest values recorded along the southeast coast and the open sea area; the highest values were recorded in the northern Daya Bay, especially the northwest. Cu, Zn, As, Cd, Pb, and Hg were classified as Class I, and Ni and Cr were classified as Class II according to the Sediment Quality Guidelines (SQGs) of China. The potential ecological risk (E-f(i)) indices of Cu, Zn, As, Pb, Ni, and Cr specify that these metals pose low risk to the ecosystem of the Bay, whereas Cd and Hg pose a very high risk in some sites. The geoaccumulation indices (I-geo) of Cu, Zn, As, Ni, and Cr specify weak or no pollution in Daya Bay, whereas those of Pb, Cd, and Hg in some sites indicate moderate or even high pollution. Spatial distribution, carbon/nitrogen analysis, Pearson correlation, and principal components analysis indicated that Cu, Zn, As, Pb, Ni, Cr, total organic carbon (TOC), and total nitrogen (TN) originated from the same sources. Ballast water or sewage from the cargo ships that park at the harbors or anchor in the Bay were the important sources for Cu, Zn, As, Pb, Ni, Cr, TOC, and TN. Other anthropogenic sources, such as agricultural runoff and aquaculture, might also be responsible, whereas Hg and Cd originated from other point sources.
部门归属[Tang, Huijuan; Yan, Muting; Wang, Wenjing; Nie, Huayue; Li, Boxing; Wang, Jun] South China Agr Univ, Joint Lab Guangdong Prov & Hong Kong Reg Marine B, Guangzhou 510642, Guangdong, Peoples R China; [Tang, Huijuan; Yan, Muting; Wang, Wenjing; Nie, Huayue; Li, Boxing; Wang, Jun] South China Agr Univ, Coll Marine Sci, Guangzhou 510642, Guangdong, Peoples R China; [Ke, Zhixin; Zhang, Jingping; Xu, Xiangrong] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
学科领域Water Resources
关键词[WOS]Daya Bay ; heavy metals ; ecological risk ; sediment ; sources ; distribution
资助项目LMB
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16931
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tanghj@scau.edu.cn; kzx@scsio.ac.cn; marineymt@scau.edu.cn; wenjing1379@163.com; hynhy@stu.scau.edu.cn; Liboxing@stu.scau.edu.cn; zhangjingping@scsio.ac.cn; xuxr@scsio.ac.cn; wangjun2016@scau.edu.cn
推荐引用方式
GB/T 7714
Tang, HJ,Ke, ZX,Yan, MT,et al. Concentrations, Distribution, and Ecological Risk Assessment of Heavy Metals in Daya Bay, China[J]. WATER,2018,10(6):-80.
APA Tang, HJ.,Ke, ZX.,Yan, MT.,Wang, WJ.,Nie, HY.,...&wangjun2016@scau.edu.cn.(2018).Concentrations, Distribution, and Ecological Risk Assessment of Heavy Metals in Daya Bay, China.WATER,10(6),-80.
MLA Tang, HJ,et al."Concentrations, Distribution, and Ecological Risk Assessment of Heavy Metals in Daya Bay, China".WATER 10.6(2018):-80.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Concentrations, Dist(1859KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。