SPECIATION AND ECOLOGICAL RISK ASSESSMENT OF ARSENIC AND MERCURY IN SOIL AROUND A GOLD MINING AREA IN PINGGU DISTRICT, BEIJING

ZHOU Ying; WANG Xue-mei; JIANG Yu-zhuo; ZHAO Yun-feng; JI Hong-bing

doi:10.13205/j.hjgc.202108028

Volume 39 Issue 8

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(8): 203-210,164

ZHOU Ying, WANG Xue-mei, JIANG Yu-zhuo, ZHAO Yun-feng, JI Hong-bing. SPECIATION AND ECOLOGICAL RISK ASSESSMENT OF ARSENIC AND MERCURY IN SOIL AROUND A GOLD MINING AREA IN PINGGU DISTRICT, BEIJING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(8): 203-210,164. doi: 10.13205/j.hjgc.202108028

Citation:

ZHOU Ying, WANG Xue-mei, JIANG Yu-zhuo, ZHAO Yun-feng, JI Hong-bing. SPECIATION AND ECOLOGICAL RISK ASSESSMENT OF ARSENIC AND MERCURY IN SOIL AROUND A GOLD MINING AREA IN PINGGU DISTRICT, BEIJING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(8): 203-210,164. doi: 10.13205/j.hjgc.202108028

Citation:

ZHOU Ying, WANG Xue-mei, JIANG Yu-zhuo, ZHAO Yun-feng, JI Hong-bing. SPECIATION AND ECOLOGICAL RISK ASSESSMENT OF ARSENIC AND MERCURY IN SOIL AROUND A GOLD MINING AREA IN PINGGU DISTRICT, BEIJING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(8): 203-210,164. doi: 10.13205/j.hjgc.202108028

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SPECIATION AND ECOLOGICAL RISK ASSESSMENT OF ARSENIC AND MERCURY IN SOIL AROUND A GOLD MINING AREA IN PINGGU DISTRICT, BEIJING

doi: 10.13205/j.hjgc.202108028

1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Geological Engineering Design and Research Institute, Beijing 101500, China;
3. College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China

Received Date: 2020-06-30
Available Online: 2022-01-18

Abstract

Abstract

Concentrations and speciation characteristics of arsenic and mercury in 40 surface soil samples around a gold mining area in Pinggu District of Beijing were determined. The pollution and ecological risk of arsenic and mercury were evaluated by the Ratio of Secondary Phase to Primary Phase (RSP) and Risk Assessment Code (RAC). The results showed that the average concentrations of arsenic and mercury in the soil exceeded the background values of soil, by 3.94~13.24 times and 11~41.33 times respectively; arsenic and mercury were primarily dominated by residual fraction, in addition to the residual fractions, arsenic in the soil of mining gully and tailings pond was bound to the Fe-Mn oxides, whereas mercury in the soil downstream of mining gully and outside the tailings pond was bound to the carbonate and the organics; the results of the pollution and ecological risk showed that the pollution degree of arsenic and mercury in the soil of mining gully and downstream was relatively lower, in the soil of the study area arsenic and mercury were at lower risk; in the soil of mining gully, YZ tailings pond and JHH tailings pond mercury were at high and extremely high risk, respectively, which should be paid attention to. The results provided a reference for treating arsenic and mercury pollution in the soil around the gold mining area.
- heavy metal,
- gold mine,
- mine tailings,
- speciation,
- ecological risk

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References(33)

References

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