Spatial distribution, fractionation, toxicity and risk assessment of surface sediments from the Baiyangdian Lake in northern China
文献类型：期刊论文
| 作者 | Song, Zhixin; Zhang, Chao; Shan, Baoqing; Zhao, Yu; Tang, Wenzhong
|
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 90页码:633-642 |
| 关键词 | Baiyangdian Lake Heavy metals Bioavailability Ecological risk Toxicity |
| ISSN号 | 1470-160X |
| 文献子类 | Article |
| 英文摘要 | The pollution of Baiyangdian Lake (BYDL) has been of concern since the Xiongan New Area was established. To conduct ecological restoration of BYDL, the heavy metals (HMs) levels in sediments were assessed. Specifically, Surface sediments (0-10 cm) samples in BYDL were analyzed for Cd, Cr, Cu, Ni, Pb and Zn in October 2016 to evaluate the risk posed by trace metals, as well as their bioavailability and toxicity. The results demonstrated that HMs showed high pollution and risk levels in most sample sites as a result of Cd and Pb. Metals speciation analysis demonstrated that Cd, Cu, Pb and Zn were dominated by non-residual fractions that originated from anthropogenic sources and presented higher bioavailability. The risk assessment code indicated that Cd poses a medium level biological risk in BYDL, which reached 10.25% and 29.38%. The bioavailable metals index showed a strong correlation with acute toxicity (R-2 = 0.704), indicating bioavailable metals are an important reason for sediment acute toxicity. Canonical correspondence analysis demonstrated that HMs have a coercive effect on the distribution of benthic invertebrates. Overall, the results indicate that HMs pollution should be considered during the development of strategies for ecological restoration in BYDL. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41184]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Song, Zhixin,Zhang, Chao,Shan, Baoqing,et al. Spatial distribution, fractionation, toxicity and risk assessment of surface sediments from the Baiyangdian Lake in northern China[J]. ECOLOGICAL INDICATORS,2018,90:633-642. |
| APA | Song, Zhixin,Zhang, Chao,Shan, Baoqing,Zhao, Yu,&Tang, Wenzhong.(2018).Spatial distribution, fractionation, toxicity and risk assessment of surface sediments from the Baiyangdian Lake in northern China.ECOLOGICAL INDICATORS,90,633-642. |
| MLA | Song, Zhixin,et al."Spatial distribution, fractionation, toxicity and risk assessment of surface sediments from the Baiyangdian Lake in northern China".ECOLOGICAL INDICATORS 90(2018):633-642. |
入库方式： OAI收割
来源：生态环境研究中心
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