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Surface Water Contamination by Uranium Mining/Milling Activities in Northern Guangdong Province, China
Jin Wang;  Juan Liu;  Hongchun Li;  Gang Song;  Yongheng Chen;  Tangfu Xiao;  Jianying Qi;   Li Zhu
2012
Source PublicationClean – Soil, Air, Water
Volume2012Pages:1–7
Abstract

The northern region of Guangdong Province, China, has suffered from the extensive mining/milling of uranium for several decades. In this study, surface waters in the region were analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES) for the concentrations of uranium (U), thorium (Th), and non-radioactive metals (Fe, Mn, Mg, Li, Co, Cu, Ni, and Zn). Results showed highly elevated concentrations of the studied radionuclides and metals in the discharged effluents and the tailing seepage of the U mining/milling sites. Radionuclide and heavy metal concentrations were also observed to be overall enhanced in the recipient stream that collected the discharged effluents from the industrial site, compared to the control streams, and rivers with no impacts from the U mining/milling sites. They displayed significant spatial variations and a general decrease downstream away from upper point-source discharges of the industrial site. In addition, obvious positive correlations were found between U and Th, Fe, Zn, Li, and Co (R2 > 0.93, n ¼ 28) in the studied water samples, which suggest for an identical source and transport pathway of these elements. In combination with present surface water chemistry and chemical compositions of uraniferous minerals, the elevation of the analyzed elements in the recipient stream most likely arose from the liquid effluents, processing water, and acid drainage from the U mining/milling facilities. The dispersion of radionuclides and hazardous metals is actually limited to a small area at present, but some potential risk should not be negligible for local ecosystem. The results indicate that environmental remediation work is required to implement and future cleaner production technology should be oriented to avoid wide dispersion of radioactivity and non-radioactive hazards in U mining/milling sites.

KeywordHeavy Metal Radionuclide Water Pollution
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10951
Collection环境地球化学国家重点实验室
Affiliation1.Key Laboratory of Waters Safety and Protection in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, China
2.Department of Geosciences, National Taiwan University, Taipei, China
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
4.South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou, China
Recommended Citation
GB/T 7714
Jin Wang;Juan Liu;Hongchun Li;Gang Song;Yongheng Chen;Tangfu Xiao;Jianying Qi; Li Zhu. Surface Water Contamination by Uranium Mining/Milling Activities in Northern Guangdong Province, China[J]. Clean – Soil, Air, Water,2012,2012:1–7.
APA Jin Wang;Juan Liu;Hongchun Li;Gang Song;Yongheng Chen;Tangfu Xiao;Jianying Qi; Li Zhu.(2012).Surface Water Contamination by Uranium Mining/Milling Activities in Northern Guangdong Province, China.Clean – Soil, Air, Water,2012,1–7.
MLA Jin Wang;Juan Liu;Hongchun Li;Gang Song;Yongheng Chen;Tangfu Xiao;Jianying Qi; Li Zhu."Surface Water Contamination by Uranium Mining/Milling Activities in Northern Guangdong Province, China".Clean – Soil, Air, Water 2012(2012):1–7.
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