| Speciation, risks and isotope-based source apportionment of trace elements in soils of the northeastern Qinghai-Tibet Plateau | |
Li, Leiming ; Wu, Jun; Lu, Jian; Xu, Juan
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| 第一作者 | Li, Leiming |
| 2020-08 | |
| 发表期刊 | GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS
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| ISSN | 1467-7873 |
| 卷号 | 20期号:3页码:315-322 |
| 摘要 | Trace elements in soils might cause contamination and ecological risks to the environment with increasing anthropogenic disturbance. This study investigated the distribution, speciation, risks and possible sources of 28 target trace elements in soils of the northeastern Qinghai-Tibet Plateau. The average concentrations of trace elements in soils of the study area ranged from 0.25 (Hg) to 697.38 mg kg(-1) (Cr). The residual fraction was the dominant host of V, Cr, Cu, Sn, Sb Hg and REEs, while Co, Ni, Zn, Mo, Cd and Pb had large proportions in the non-residual fractions. Risk assessment code analysis showed that Cd should be recognized as a priority pollutant in the study area. Correlation analysis indicated that Pb, Cu, Zn, Cd and Sn might originate from the same or similar source. The (206)pb/(207)pb and (208)p/Pb-206 ratios of the soils were in the range of 1.166-1.224 and 2.031-2.122, respectively. The anthropogenic Pb contribution proportion was in the range of 0-53.92% for the study area. The anthropogenic Pb contribution was higher in the areas with more intensive anthropogenic activities. Heavy metals and excessive anthropogenic disturbance should be effectively controlled in the northeastern Qinghai-Tibet Plateau to maintain the ecological sustainability and human health of this fragile area. |
| DOI | 10.1144/geochem2019-042 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/33983 |
| 专题 | 盐湖地质与环境实验室 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Li, Leiming,Wu, Jun,Lu, Jian,et al. Speciation, risks and isotope-based source apportionment of trace elements in soils of the northeastern Qinghai-Tibet Plateau[J]. GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS,2020,20(3):315-322. |
| APA | Li, Leiming,Wu, Jun,Lu, Jian,&Xu, Juan.(2020).Speciation, risks and isotope-based source apportionment of trace elements in soils of the northeastern Qinghai-Tibet Plateau.GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS,20(3),315-322. |
| MLA | Li, Leiming,et al."Speciation, risks and isotope-based source apportionment of trace elements in soils of the northeastern Qinghai-Tibet Plateau".GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS 20.3(2020):315-322. |
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| Speciation, risks an（1654KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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