Basin-scale comprehensive assessment of cadmium pollution, risk, and toxicity in riverine sediments of the Haihe Basin in north China
文献类型：期刊论文
| 作者 | Zhao, Yu; Tang, Wenzhong; Zhang, Wenqiang; Shan, Baoqing; Zhang, Hong |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 81期号:0页码:295-301 |
| 关键词 | Cadmium Surface Riverine Sediment Ecological Risk Haihe Basin Bioavailability |
| 英文摘要 | A comprehensive and detailed investigation of cadmium (Cd) pollution in surface riverine sediments of the Haihe Basin in north China was carried out. Total Cd concentrations in these sediments ranged from 0.153 to 22.1 mg/kg, exceeding the soil background value at all sampling sites. The mean Cd concentration of the bioavailable fraction was 0.557 mg/kg, accounting on average for 51.58% of the total Cd. A mean value of the Cd enrichment factor of 11.6 suggested that Cd has accumulated in most riverine sediments, resulting in a high degree of anthropogenic pollution. In fact, there were high levels of Cd pollution in the riverine sediments throughout the Haihe Basin, yielding geo-accumulation index values for Cd from 0.071 to 7.25. According to the potential ecological risk index, risk assessment code, and consensus-based sediment quality guidelines, Cd was a serious pollutant in this ecosystem. Because it occurred as a high proportion in the exchangeable/acid soluble fraction (21.21% on average), it may also have biological toxicity. Our findings indicated that it is important to consider Cd in control strategies for managing riverine sediment pollution in the Haihe Basin. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39476]  |
| 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 | Zhao, Yu,Tang, Wenzhong,Zhang, Wenqiang,et al. Basin-scale comprehensive assessment of cadmium pollution, risk, and toxicity in riverine sediments of the Haihe Basin in north China[J]. ECOLOGICAL INDICATORS,2017,81(0):295-301. |
| APA | Zhao, Yu,Tang, Wenzhong,Zhang, Wenqiang,Shan, Baoqing,&Zhang, Hong.(2017).Basin-scale comprehensive assessment of cadmium pollution, risk, and toxicity in riverine sediments of the Haihe Basin in north China.ECOLOGICAL INDICATORS,81(0),295-301. |
| MLA | Zhao, Yu,et al."Basin-scale comprehensive assessment of cadmium pollution, risk, and toxicity in riverine sediments of the Haihe Basin in north China".ECOLOGICAL INDICATORS 81.0(2017):295-301. |
入库方式： OAI收割
来源：生态环境研究中心
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