An approach to quantify heavy metals and their source apportionment in coal mine soil: a study through PMF model

被引:0
作者
Shubham Singh
Subodh Kumar Maiti
Deep Raj
机构
[1] Indian Institute of Technology (Indian School of Mines),Ecological Restoration Laboratory, Department of Environmental Science & Engineering
[2] SRM University,Department of Environmental Science, School of Engineering and Sciences (SEAS)
来源
Environmental Monitoring and Assessment | 2023年 / 195卷
关键词
Heavy metals; PMF model; Coal mines; Contamination factor; Ecological restoration;
D O I
暂无
中图分类号
学科分类号
摘要
Mining activities in the opencast coal mines contaminate the surrounding soil by releasing coal dust containing heavy metals (HMs). The objective of the present study was to quantify the concentration of HMs like Fe, Cu, Mn, Ni, Cr, Zn, and Co in soil on profile and distance basis in the vicinity of the coal mines. This research also proposed the synthesis application of positive matrix factorization (PMF) model for the quantitative assessment of pollution sources. The results showed that the soil was more affected due to the presence of Cr in mining areas., and the contamination factor (Cf) of Cr was high at the edge of coal mine. It was observed from the study that Cf of the HMs was decreased with the increase in distance from the mine edge. The application of PMF model demonstrated that the contributions of Zn (4.2%), Ni (16.8%), and Mn (100%) were maximum in the pollution. The study concluded that soil contamination is inexorable due to opencast coal mining activities, and it can be mitigated by developing a green belt or through the process of ecological restoration and phytoremediation.
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