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IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)  > 期刊论文
题名: Chemical speciation and risk assessment of cadmium in soils around atypical coal mining area of China
作者: Cheng, SW(Cheng, SIiwei)1, 2;  Liu, GJ(Liu, Guijian)1, 2;  Sun, RY(Sun, Ruoyu)3
通讯作者: Liu, Guijian
关键词: Chemical speciation ;  Ecological risk assessment ;  Cadmium ;  Soil contamination
刊名: Ecotoxicology and Environmental Safety
发表日期: 2018-09-30
DOI: 10.1016/j.ecoenv.2018.05.022
卷: 160, 期:2018, 页:67-74
收录类别: SCI
文章类型: 期刊论文
英文摘要: The distribution characteristics of Cadmium (Cd) fractions in soils around a coal mining area of Huaibei coalfield were investigated, with the aim to assess its ecological risk. The total Cd concentrations in soils ranged from 0.05 to 0.87 mg/kg. The high percentage of phyto-available Cd (58%) when redox or base-acid equilibria changed. Soil pH was found to be a crucial factor affecting soil Cd fraction, and carbonate-bound Cd can be significantly affected by both organic matter and pH of soils. The static ecological evaluation models, including potential ecological risk index (PERI), geo-accumulation index (Igeo) and risk assessment code (RAC), revealed a moderate soil Cd contamination and prensented high Cd exposure risk in studied soils. However, the dynamic evaluation of Cd risk, determined using a delayed geochemical hazard (DGH), suggested that our studied soils can be classified as median-risk with a mean probability of 24.79% for Cd DGH. These results provide a better assessment for the risk development of Cd contamination in coal mining areas.
语种: 英语
所属项目编号: 973 Program, 2014CB238903 ;  41672144, 41402133
项目资助者: the National Basic Research Program ofChina ;  the National Natural ScienceFoundation of China
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.ieecas.cn/handle/361006/5260
Appears in Collections:黄土与第四纪地质国家重点实验室(2010~)_期刊论文

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作者单位: 1.CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026,China
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, Shaanxi, China
3.Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China

Recommended Citation:
Cheng, SW,Liu, GJ,Sun, RY. Chemical speciation and risk assessment of cadmium in soils around atypical coal mining area of China[J]. Ecotoxicology and Environmental Safety,2018,160(2018):67-74.
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