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- Title
川西甲基卡锂资源富集区根系土壤重金属含量水平及 时空分布特征.
- Authors
高娟琴; 于扬; 王登红; 刘丽君; 王伟; 郝雪峰; 代鸿章
- Abstract
BACKGROUND: As more and more countries pay greater attention to energy metals, the strategic position of lithium has been continuously improved. As a result, the research related to lithium deposits and lithium metal has been continuously carried out. Heavy metal pollution in the lithium mine has received attention in recent years. Under the circumstances, the content and distribution of heavy metals in lithium mines is worthy of further study. OBJECTIVES:To evaluate the level and safety of heavy metals in the Jiajika lithium mining area. METHODS:From 2016 to 2018, 68 root soil samples were collected from the Jiajika lithium mining area in Western Sichuan. The content of Cd, As, Pb, Cr, Cu, Ni and Zn in root soil sample were determined by inductively coupled plasma-mass spectrometry (ICP-MS). RESULTS:The results show that the average content of Cd, As, Pb, Cr, Cu, Ni and Zn in the root soils of Jiajika mining area was 0.13, 15.31, 25.47, 60.57, 16.12, 23.59, and 66.83mg/kg, respectively. None of the soil samples exceeded the latest published standard for agricultural land in August 2018. Soils from the tailings reservoir area of common deposits like Cu, Pb, Zn often had serious heavy metal pollution. The heavy metal content in Jiajika tailings reservoir was lower than the environmental standard limit, and the content of Cd, As and Cr in root soils from tailings reservoir areas was decreasing year by year during the three years after mining activity ceased. CONCLUSIONS:The heavy metals in the roots of the mineral processing factory and the tailings reservoir have certain enrichment due to the existence of anthropogenic sources, but they do not constitute a hazard and the waste has little environmental pollution.
- Subjects
SICHUAN Sheng (China); HEAVY metals; LITHIUM; SOIL sampling; POLLUTION; ENVIRONMENTAL standards; MINE soils; FARMS; HEAVY metal toxicology
- Publication
Rock & Mineral Analysis, 2019, Vol 38, Issue 6, p381
- ISSN
0254-5357
- Publication type
Article
- DOI
10.15898/j.cnki.11-2131/td.201812190137