Pollution characteristics and probabilistic health risk of potentially hazardous elements in soils near a typical coal mine in Panzhihua City, Southwest China

被引:5
|
作者
Zhu, Yanyuan [1 ,2 ]
Zhu, Jingyi [3 ]
Wang, Bin [1 ]
Xiao, Min [1 ]
Li, Li [2 ]
机构
[1] Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Peoples R China
[2] Sichuan Met Geol Survey & Ecol Environm Engn Co L, Chengdu 610065, Peoples R China
[3] Southwest Univ, Coll Food Sci, Chongqing 400000, Peoples R China
关键词
Coal mining area; Soil pollution; Potential ecological risk; Human health risk; Monte Carlo simulation; HEAVY-METALS; TECHNOLOGY; INDEX; AREAS;
D O I
10.1007/s10661-022-10852-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This study first assessed the pollution characteristics and probabilistic health risks of potentially hazardous elements (PHEs) in soils from the Dabaoding coal mining area in southwest China using Monte Carlo simulation. Experimental results showed that Cd was moderately enriched in soils, while Ni, Cr, and V were slightly enriched. However, the geoaccumulation index (I-geo) illustrated that the coal mining area had a low level of Cd pollution. PHEs produced a very high ecological risk to soils in the coal mining area, whereas Cd showed the highest contribution (82.56%). The mean hazard index of all soil PHEs was 7.45E-02 and 4.18E-01 for local adults and children, respectively, all of which were obviously lower than the maximum acceptable level of 1.0. However, Monte Carlo simulation analysis indicated that 1.08% of noncarcinogenic risk values for local children still exceeded the maximum acceptable level. Additionally, 10.84% and 18.40% of the total carcinogenic risk values for local adults and children, respectively, exceeded the threshold of 1E-04. Indeed, Cr and Ni had the highest contributions to noncarcinogenic and carcinogenic risks, respectively. These findings suggest that Cd, Cr, and Ni should be identified as priority pollutants in coal mining areas. This study also provides valuable implications for policy-makers and environmental engineers, proposing efficient policies for better soil pollution control and remediation strategies in coal mining areas.
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页数:14
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