Comprehensive assessment of heavy metal pollution and ecological risk in lake sediment by combining total concentration and chemical partitioning
文献类型：期刊论文
| 作者 | Yu, Zhenzhen1,2,3,4; Liu, Enfeng2,3; Lin, Qi3; Zhang, Enlou3; Yang, Fen1; Wei, Chaoyang1 ; Shen, Ji5
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| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2021-01-15 |
| 卷号 | 269页码:11 |
| ISSN号 | 0269-7491 |
| 关键词 | Heavy metals Total concentration Chemical partitioning Bioavailability Pollution Ecological risk |
| DOI | 10.1016/j.envpol.2020.116212 |
| 通讯作者 | Liu, Enfeng(liuenfeng@sdnu.edu.cn) |
| 英文摘要 | Total concentration and chemical partitioning of heavy metals are commonly used in environmental quality assessment; however, their comparability and comprehensive application are far less discussed. Herein, bioavailability, pollution and eco-risk of As, Cd, Cr, Cu, Ni, Pb and Zn in surface sediments of Erhai Lake were evaluated referring to multiple indices following the experimental methods of complete digestion, optimized Community Bureau of Reference (BCR) and 1.0 M HCl extractions. Results of bioavailability for most metals were similar and comparable from BCR and HCl extractions. While bioavailable concentrations of Cd and Pb from HCl extraction were significantly (p < 0.01) lower than those from BCR extraction, indicating BCR extraction is more efficient. Results of enrichment factor (EF) and concentration enrichment ratio (CER) suggested that Cd was the highest polluted element followed by As, Pb and Zn, whereas Cr, Cu and Ni were mainly natural in origin. Similar concentrations of anthropogenic As from EF and CER assessments indicated anthropogenic As mainly existed in bioavailable form. However, anthropogenic Cd, Pb and Zn existed in both bioavailable and residue forms, resulting in the underestimation of anthropogenic metals by the CER assessment. The sediment quality guidelines (SQGs), potential ecological risk index (Er) and risk assessment code (RAC) showed inconsistent eco-risks for each of the metals except Cd. Combining pollution level and chemical partitioning with SQGs, Er and RAC assessments, high eco-risk of Cd, moderate eco-risk of As and Pb, and low eco-risk of Cr, Cu, Ni and Zn were graded. Our study highlights the limitation of single index and the necessity of integrating multiple indices following total concentration and chemical partitioning in metal pollution and eco-risk assessments. (C) 2020 Elsevier Ltd. All rights reserved. |
| WOS关键词 | SEQUENTIAL EXTRACTION PROCEDURE ; SPATIAL-DISTRIBUTION ; CONTAMINATION ; SOIL ; RIVER ; ERHAI ; HCL ; CU ; ZN ; PB |
| 资助项目 | National Natural Science Foundation of China[41672354] ; Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0202] ; State Key Laboratory of Lake Science and Environment[2018SKL002] ; Key Research and Development Program of Shandong Province[2018GSF117014] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000604429000113 |
| 资助机构 | National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; State Key Laboratory of Lake Science and Environment ; Key Research and Development Program of Shandong Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/136299]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Enfeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Shandong Normal Univ, Coll Geog & Environm, Jinan 250358, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Zhenzhen,Liu, Enfeng,Lin, Qi,et al. Comprehensive assessment of heavy metal pollution and ecological risk in lake sediment by combining total concentration and chemical partitioning[J]. ENVIRONMENTAL POLLUTION,2021,269:11. |
| APA | Yu, Zhenzhen.,Liu, Enfeng.,Lin, Qi.,Zhang, Enlou.,Yang, Fen.,...&Shen, Ji.(2021).Comprehensive assessment of heavy metal pollution and ecological risk in lake sediment by combining total concentration and chemical partitioning.ENVIRONMENTAL POLLUTION,269,11. |
| MLA | Yu, Zhenzhen,et al."Comprehensive assessment of heavy metal pollution and ecological risk in lake sediment by combining total concentration and chemical partitioning".ENVIRONMENTAL POLLUTION 269(2021):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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