ArticleEnvironmental science and pollution research international2018
Spatial distribution and environmental implications of heavy metals in typical lead (Pb)-zinc (Zn) mine tailings impoundments in Guangdong Province, South China.
Article in Environmental science and pollution research international, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Reaction Process of Solid Waste Composite-Based Cementitious Materials for Immobilizing and Characterizing Heavy Metals in Lead and Zinc Tailings: Based on XRD, SEM-EDS and Compressive Strength Characterization.Molecules (Basel, Switzerland) · 2024Article
- Immobilization of Pb and Zn in Contaminated Soil Using Alumina-Silica Nano-Amendments Synthesized from Coal Fly Ash.International journal of environmental research and public health · 2022Article
- Pollution Assessment of Potentially Toxic Elements (PTEs) in Soils around the Yanzhuang Gold Mine Tailings Pond, Pinggu County, Beijing, China.International journal of environmental research and public health · 2021Article
- Heavy metal pollution caused by cyanide gold leaching: a case study of gold tailings in central China.Environmental science and pollution research international · 2021Article
- Effects of lithium resource exploitation on surface water at Jiajika mine, China.Environmental monitoring and assessment · 2021Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Heavy metal pollution from mining tailings has become a serious concern in China. Here, we quantitatively evaluated the accumulation status and environmental risk of the tailings impoundments located in a typical Pb-Zn mining area in Guangdong Province, South China. The distributional characteristics of the heavy metals in the tailings impoundment area were analyzed. The results showed that the spatial distributions of the heavy metals contained in the tailings were dependent on the geochemical characteristics of the mine tailings rather than on their diversified profile depths. Furthermore, the risk assessment of the heavy metal pollution in the soils surrounding the tailings impoundment showed that the comprehensive Nemerow pollution index (NPI) of the tested surface soil samples was higher than 3.0; thus, these values were much greater than those of the deep soil. Meanwhile, multivariate statistical analysis revealed that the heavy metals contained in the surrounding soils, such as Pb, Zn, Cu, Cd, As, and Tl, experienced similar geochemical processes. The analysis of drainage water samples indicated that surface runoff from the tailings impoundment was the main route for the migration of heavy metals. Moreover, the alkaline substances would be consumed by the acid that is continuously generated in the tailings pond, and this increases the risk of heavy metals migrating from the tailings impoundment area. Lastly, resource analysis and process mineralogy analysis showed that the tailings had a high recovery value, and the recovery of tailings would completely eliminate the environmental risks posed by the tailings.
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