Ecological risk assessment of polymetallic sites Using weight of evidence approach
文献类型：期刊论文
| 作者 | Li, Xuzhi; Wang, Meie; Chen, Weiping ; Uwizeyimana, Herman
|
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2018-06-15 |
| 卷号 | 154页码:255-262 |
| 关键词 | Hazard quotient Integrated biomarker response Multidisciplinary framework Environmental risk index |
| ISSN号 | 0147-6513 |
| 文献子类 | Article |
| 英文摘要 | Ecological risk assessment (ERA) of polymetallic contamination in soils has caused extensive solicitude. However, objective and feasible methods suitable for soil ERA are limited. Therefore, in this study, a multi-disciplinary and quantitative weight of evidence approach (WOE) specific to soil ecosystems was developed based on the previous WOE for aquatic ecosystems. The framework consisted of four lines of evidence (LOEs): DTPA-extractable heavy metal in soils, bioaccumulation in earthworms, integration of biomarker responses and expected community effect (multi-substance Potentially Affected Fraction, msPAF). These four LOEs were initially evaluated by each hazard quotient (HQ) of them based on the ratio to the reference (RTR) of each parameter. Then, Environmental risk index (EnvRI) integrated by HQs with different weights was calculated. At last, three sites, one for reference (N1) and two for contaminated soils (N2 and N3) were chosen to apply the modified WOE approach. Results showed that heavily contaminated site, N3 had higher HQ classification for each LOE and its EnvRI was classified as Major levels, while the EnvR1 of N2 was assigned into Moderate. What's more, HQ of biomarker response (HQ(biomarker)) integrated by RTRs of biomarkers increased gradiently with the increase of heavy metal levels in soils though irregular changes were observed for most of those biomarkers. Overall, our results indicated that the quantitative WOE framework specific to soil ERA had the advantage of obtaining a comprehensive and objective risk assessment. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40526]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Xuzhi,Wang, Meie,Chen, Weiping,et al. Ecological risk assessment of polymetallic sites Using weight of evidence approach[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,154:255-262. |
| APA | Li, Xuzhi,Wang, Meie,Chen, Weiping,&Uwizeyimana, Herman.(2018).Ecological risk assessment of polymetallic sites Using weight of evidence approach.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,154,255-262. |
| MLA | Li, Xuzhi,et al."Ecological risk assessment of polymetallic sites Using weight of evidence approach".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 154(2018):255-262. |
入库方式： OAI收割
来源：生态环境研究中心
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