Chemical speciation and risk assessment of cadmium in soils around atypical coal mining area of China
Cheng, SW(Cheng, SIiwei)1,2; Liu, GJ(Liu, Guijian)1,2; Sun, RY(Sun, Ruoyu)3; Liu, Guijian
2018-09-30
发表期刊Ecotoxicology and Environmental Safety
卷号160期号:2018页码:67-74
文章类型期刊论文
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.
关键词Chemical Speciation Ecological Risk Assessment Cadmium Soil Contamination
DOI10.1016/j.ecoenv.2018.05.022
收录类别SCI
所属项目编号973 Program, 2014CB238903 ; 41672144, 41402133
语种英语
项目资助者the National Basic Research Program ofChina ; the National Basic Research Program ofChina ; the National Natural ScienceFoundation of China ; the National Natural ScienceFoundation of China
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5260
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Liu, Guijian
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
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Cheng, SW,Liu, GJ,Sun, RY,et al. 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.
APA Cheng, SW,Liu, GJ,Sun, RY,&Liu, Guijian.(2018).Chemical speciation and risk assessment of cadmium in soils around atypical coal mining area of China.Ecotoxicology and Environmental Safety,160(2018),67-74.
MLA Cheng, SW,et al."Chemical speciation and risk assessment of cadmium in soils around atypical coal mining area of China".Ecotoxicology and Environmental Safety 160.2018(2018):67-74.
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