Chemical speciation and risk assessment of cadmium in soils around atypical coal mining area of China

doi:10.1016/j.ecoenv.2018.05.022

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Chemical speciation and risk assessment of cadmium in soils around atypical coal mining area of China
	Cheng, SW(Cheng, SIiwei)1,3; Liu, GJ(Liu, Guijian)1,3; Sun, RY(Sun, Ruoyu)2; Liu, Guijian
刊名	Ecotoxicology and Environmental Safety
	2018-09-30
卷号	160 期号:2018 页码:67-74
关键词	Chemical Speciation Ecological Risk Assessment Cadmium Soil Contamination
DOI	10.1016/j.ecoenv.2018.05.022
文献子类	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.
项目编号	973 Program, 2014CB238903 ; 41672144, 41402133
语种	英语
资助机构	the National Basic Research Program ofChina ; the National Basic Research Program ofChina ; the National Natural ScienceFoundation of China ; the National Natural ScienceFoundation of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5260]
专题	地球环境研究所_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.Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China 3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, Shaanxi, China
推荐引用方式 GB/T 7714	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.