Pollution characteristics, source analysis and risk assessment of heavy metals in soil around a gold mine in Jiaodong Peninsula

ZHAO Liyuan; KONG Linghao; ZHAO Zhigang; ZHOU Wenhui; QIU Jiandong; HUANG Jianhua; GENG Baili; YANG Maosen; HAN Xiangcai; LI Yachao; GU Songsong; ZHAO Mingjie; SHAN Kai

doi:10.12029/gc20230622001

2024 Vol. 51, No. 5

Article Contents

Article navigation > Geology in China > 2024 > 51(5): 1485-1500

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ZHAO Liyuan, KONG Linghao, ZHAO Zhigang, ZHOU Wenhui, QIU Jiandong, HUANG Jianhua, GENG Baili, YANG Maosen, HAN Xiangcai, LI Yachao, GU Songsong, ZHAO Mingjie, SHAN Kai. 2024. Pollution characteristics, source analysis and risk assessment of heavy metals in soil around a gold mine in Jiaodong Peninsula[J]. Geology in China, 51(5): 1485-1500. doi: 10.12029/gc20230622001

Citation:

ZHAO Liyuan, KONG Linghao, ZHAO Zhigang, ZHOU Wenhui, QIU Jiandong, HUANG Jianhua, GENG Baili, YANG Maosen, HAN Xiangcai, LI Yachao, GU Songsong, ZHAO Mingjie, SHAN Kai. 2024. Pollution characteristics, source analysis and risk assessment of heavy metals in soil around a gold mine in Jiaodong Peninsula[J]. Geology in China, 51(5): 1485-1500. doi: 10.12029/gc20230622001

Pollution characteristics, source analysis and risk assessment of heavy metals in soil around a gold mine in Jiaodong Peninsula

1.
Yantai Coastal Zones Geological Survey, China Geological Survey, Yantai 264000, Shandong, China
2.
Observation and Research Station of Land−Sea Interaction Field in the Yellow River Estuary, Yantai 264000, Shandong, China
3.
Hohhot Natural Resources Comprehensive Survey Center, CGS, Huhhot 010010, Inner Mongolia, China
4.
Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, Shandong, China
5.
School of Earth and Space Sciences, Peking University, Beijing 100871, China
6.
Institute of Geophysical and Geochemical Prospecting, Jinan 250013, Shandong, China
7.
Yellow River Delta National Nature Reserve Committee, Dongying 257091, Shandong, China

Fund Project: Supported by the projects of China Geological Survey (No.ZD20220220, No.DD20230411, No.DD20230511, No.DD20242687).

More Information

Author Bio: ZHAO Liyuan, male, born in 1993, master, engineer, engaged in hydrogeological and environmental geological survey research; E-mail: 353840397@qq.com
Corresponding author: KONG Linghao, male, born in 1992, master, senior engineer, engaged in mine ecological environment and coastal geological investigation and research; E-mail: 1245046910@qq.com.

Received Date: 22 June 2023

Revised Date: 04 November 2023

Publish Date: 25 September 2024

Abstract

Abstract

This paper is the result of environmental geological survey engineering.
Objective
This paper collected 34 surface soil samples to analyze and determine the concentrations of eight heavy metal, including Hg, Cd, As, Pb, Cu, Cr, Zn, and Ni. The objective was to characterize the heavy metal pollution in the soil around a gold mine, identify the sources of heavy metals in the soil, and conduct a risk assessment.
Methods
Correlation analysis and principal component analysis were used to explore the sources of heavy metals in the soil. Single pollution evaluation and geo−accumulation index method were employed to determine the degree of pollution. Potential ecological risk assessment and human health risk assessment methods were utilized to evaluate the risks.
Results
(1) Only three point source pollutions were found in the study area: one for Hg contamination and two for Cd contamination. (2) Nickel, chromium, and arsenic mainly originated from soil parent materials, while lead, cadmium, zinc, and mercury primarily came from mining activities. Copper was derived from both soil parent materials and agricultural activities. (3) Some localized areas demonstrated high potential ecological risks, mainly due to Hg and Cd, while other elements posed minimal risks. (4) Human health risk assessment indicated that the heavy metal elements in the soil did not pose significant health risks to humans.
Conclusions
The soil around the gold mine was influenced by mining activities and exhibited localized pollution, albeit at a low level. The risks were manageable, but monitoring and assessment of heavy metals in this area should be strengthened.
- gold mine /
- soil heavy metal /
- pollution level /
- source analysis /
- risk assessment /
- environmental geological survey engineering /
- Jiaodong Peninsula

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References

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