Knowledge Management System Of Qinghai Institute of Salt Lakes,CAS
| Distribution, pollution, bioaccumulation, and ecological risks of trace elements in soils of the northeastern Qinghai-Tibet Plateau | |
Li, Leiming ; Wu, Jun; Lu, Jian; Min, Xiuyun; Xu, Juan; Yang, Long
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| 第一作者 | Li, Leiming |
| 2018-12-30 | |
| 发表期刊 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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| ISSN | 0147-6513 |
| 卷号 | 166页码:345-353 |
| 摘要 | Environmental quality of the northeastern Qinghai-Tibet Plateau has attracted more attention due to increasing anthropogenic disturbance. Therefore, this study investigated the distribution, pollution, ecological risks, and bioaccumulation of 12 target heavy metals and 16 rare earth elements (REEs) in soils of this area. The average concentrations of target trace elements in soils ranged from 0.16 (Hg) to 500.46 (Cr) mg/kg. Pb caused more serious pollution than the other elements based on geo-accumulation index evaluation. Hg exhibited the strongest enrichment feature with the average enrichment factor of 8.41. Compare with modified contamination degree and pollution load index, Nemerow pollution index method obtained the most serious evaluation results that 45.67% and 16.54% of sampling sites possessed high and moderate pollution. Evaluation results of potential ecological risk index showed that trace elements in soils posed very high and considerable ecological risks in 34.65% and 7.09% of sampling sites, respectively. Mining area was the region with the most serious pollution and ecological risks. Average bioaccumulation factor (BCF) values of target trace elements ranged from 0.05 (REEs) to 2.67 (Cr). Cr was the element that was easier to bio-accumulate in plants of the study area than the other target elements. It is in urgent need to take effective measures for controlling current pollution and potential ecological risks of trace elements in soils of the northeastern Qinghai-Tibet Plateau. |
| DOI | 10.1016/j.ecoenv.2018.09.110 |
| URL | 查看原文 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/33853 |
| 专题 | 中国科学院青海盐湖研究所 支撑部门 青海盐湖研究所知识仓储 |
| 推荐引用方式 GB/T 7714 | Li, Leiming,Wu, Jun,Lu, Jian,et al. Distribution, pollution, bioaccumulation, and ecological risks of trace elements in soils of the northeastern Qinghai-Tibet Plateau[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,166:345-353. |
| APA | Li, Leiming,Wu, Jun,Lu, Jian,Min, Xiuyun,Xu, Juan,&Yang, Long.(2018).Distribution, pollution, bioaccumulation, and ecological risks of trace elements in soils of the northeastern Qinghai-Tibet Plateau.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,166,345-353. |
| MLA | Li, Leiming,et al."Distribution, pollution, bioaccumulation, and ecological risks of trace elements in soils of the northeastern Qinghai-Tibet Plateau".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 166(2018):345-353. |
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