IOCAS-IR  > 海洋地质与环境重点实验室
Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China
Hu Ningjing1; Huang Peng2; Zhang Hui1; Wang Xiaojing1; Zhu Aimei1; Liu Jihua1; Shi Xuefa1
2017
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume24Issue:1Pages:827-843
SubtypeArticle
AbstractGeochemical sources, spatio-temporal distribution, and associated environmental risk of Cd in the Bohai Sea were investigated using data from 405 surface sediment samples and two sediment cores. Local point Cd sources, TOC content, and currents are the main controlling factors of Cd distribution. The contribution of Cd from river discharge surpasses that from atmospheric deposition. Sediment-quality guidelines, enrichment factors, and chemical fraction analysis were used to assess metal toxicity in the collected sediments. Results show that Bohai Sea sediments have a moderate Cd enrichment level. This enrichment poses a high risk due to the relatively high mobility and bioavailability of Cd despite measured levels below sediment-quality guidelines at most stations. Vertical profiles of Cd concentrations, Al-normalized enrichment factors, and excess burial fluxes combined with Pb-210 dating reveal the history of Cd pollution in the Bohai Sea over the last century. Data show Cd unvaried before the 1800s, a slight increase from the 1800s to the late 1950s, a decrease from the late 1960s to the 1970s, and an increase from the 1980s to 2001, including a relatively high value in 1998. Historic variation in Cd is closely associated with both natural and anthropogenic activities.
KeywordCadmium Risk Assessment Source Sedimentary Flux Sediment Bohai Sea
DOI10.1007/s11356-016-7800-0
Indexed BySCI
Language英语
WOS IDWOS:000392105700077
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136290
Collection海洋地质与环境重点实验室
Affiliation1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Hu Ningjing,Huang Peng,Zhang Hui,et al. Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(1):827-843.
APA Hu Ningjing.,Huang Peng.,Zhang Hui.,Wang Xiaojing.,Zhu Aimei.,...&Shi Xuefa.(2017).Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(1),827-843.
MLA Hu Ningjing,et al."Geochemical source, deposition, and environmental risk assessment of cadmium in surface and core sediments from the Bohai Sea, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.1(2017):827-843.
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