Geochemical characteristics and source analysis of soil heavy metals in Luling coal mine, northern Anhui Province

Heavy metal concentrations of soils around two gangue hills from Zhuxiangzhuang coal mine, northern Anhui province, China had been determined by using X-Ray Fluorescence, and the calculation of enrich factor and index of geo-accumulation, as well as multivariate statistical analysis (including principle component analysis and cluster analysis) had been brought out to light: V, Cr, Fe, Cu and Zn of soils are unpolluted when normalize to soil environmental background value of China. However, when normalized to their minimum concentrations, Zn is light pollution. Two sources of heavy metals have been identified by using multivariate statistical analysis, including lithogenic (V and Fe) and anthropogenic (Cr, Cu and Zn). The soils from the area between two gauge hills have the highest degrees of heavy metals pollution relative to other areas, implying that the method in the Zhuxianzhuang coal mine is useful for environmental protection.

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Heavy metals in groundwater from the Wolonghu coal mine, northern Anhui Province, China and their hydrological implications

Water Practice & Technology ◽

10.2166/wpt.2014.009 ◽

2014 ◽

Vol 9 (1) ◽

pp. 79-87 ◽

Cited By ~ 8

Author(s):

Linhua Sun ◽

Herong Gui ◽

Weihua Peng

Keyword(s):

Heavy Metals ◽

Coal Mine ◽

Water Source ◽

Water Quality Assessment ◽

Quality Standard ◽

Anhui Province ◽

Iron Hydroxides ◽

Deep Aquifers ◽

And Cluster Analysis ◽

Inrush Water

Groundwater is important for either resource usage or safety of coal mining in north China. In this study, concentrations of eight kinds of heavy metals (Pb, Cd, Cu, Ni, Cr, Zn, Fe and Mn) in groundwater from three deep aquifers in the Wolonghu coal mine, northern Anhui Province, China have been analyzed for water quality assessment and water source identification. The results suggest that the groundwater have different concentrations of heavy metals among aquifers, which might be the results of different occurrence forms of heavy metals (e.g. Pb, Cd, Cu and Cr were adsorbed by iron hydroxides) and different kinds of water rock interactions (e.g. Mn and Zn originated from carbonate rocks). In comparison with the groundwater quality standard of China and WHO, most of them cannot be used for drinking directly but must be treated before drinking, especially the Pb, Cd and Fe contents. Moreover, hydraulic connection between aquifers has been identified by plots of factor scores and cluster analysis, which is similar to the results obtained by previous studies. Moreover, discriminant analysis demonstrated that heavy metals can be used for identification the source of inrush water in coal mines.

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Potential ecological risk assessment of soil heavy metals contamination around coal gangue piles of Baodian coal mine area of Shandong, China

2011 International Conference on Electrical and Control Engineering ◽

10.1109/iceceng.2011.6058220 ◽

2011 ◽

Cited By ~ 3

Author(s):

Yande Jing ◽

Baoyu Gao ◽

Yande Jing ◽

Zongqi Ma

Keyword(s):

Heavy Metals ◽

Risk Assessment ◽

Ecological Risk ◽

Ecological Risk Assessment ◽

Coal Mine ◽

Potential Ecological Risk ◽

Mine Area ◽

Soil Heavy Metals ◽

Potential Ecological Risk Assessment ◽

Heavy Metals Contamination

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Contamination features and health risk of soil heavy metals in China

The Science of The Total Environment ◽

10.1016/j.scitotenv.2015.01.025 ◽

2015 ◽

Vol 512-513 ◽

pp. 143-153 ◽

Cited By ~ 513

Author(s):

Haiyang Chen ◽

Yanguo Teng ◽

Sijin Lu ◽

Yeyao Wang ◽

Jinsheng Wang

Keyword(s):

Heavy Metals ◽

Health Risk ◽

Soil Heavy Metals

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Reforestation Impacted Soil Heavy Metal Fractionation and Related Risk Assessment in the Karst Area, Southwest China

Forests ◽

10.3390/f12070891 ◽

2021 ◽

Vol 12 (7) ◽

pp. 891

Author(s):

Qian Zhang ◽

Guilin Han ◽

Xingliang Xu

Keyword(s):

Heavy Metals ◽

Risk Assessment ◽

Ecological Risk ◽

Southwest China ◽

Risk Index ◽

Contamination Factor ◽

Karst Area ◽

Risk Assessment Code ◽

Bcr Sequential Extraction ◽

Soil Heavy Metals

Human agricultural activities have resulted in widespread land degradation and soil contamination in the karst areas. However, the effects of reforestation after agricultural abandonment on the mobility risks and contamination of heavy metals have been rarely reported. In the present study, six soil profiles were selected from cropland and abandoned cropland with reforestation in the Puding karst regions of Southwest China. The Community Bureau of Reference (BCR) sequential extraction method was used to evaluate the compositions of different chemical fractions of soil heavy metals, including Fe, Mn, Cr, Zn, Ni, and Cd. The total contents of Cr, Ni, Zn, Cd, and Mn in the croplands were significantly higher than those in the abandoned croplands. For all soils, Cr, Ni, Zn, and Fe were mainly concentrated in the residual fractions (>85%), whereas Mn and Cd were mostly observed in the non-residual fractions (>65%). The non-residual fractions of Cd, Cr, Ni, and Zn in the croplands were higher than those in the abandoned croplands. These results indicated that the content and mobility of soil heavy metals decreased after reforestation. The individual contamination factor (ICF) and risk assessment code (RAC) showed that Cd contributed to considerable contamination of karst soils. The global contamination factor (GCF) and potential ecological risk index (RI) suggested low contamination and ecological risk of the investigated heavy metals in the croplands, moreover they can be further reduced after reforestation.

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