Distribution of perfluorinated compounds in Lake Taihu (China): Impact to human health and water standards
文献类型：期刊论文
| 作者 | Zhou, Qin
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2014 |
| 卷号 | 487期号:1页码:778-784 |
| 关键词 | Perfluorooctane sulfonate (PFOS) Perfluorinated compounds (PFCs) Health risks Buffering reservoir Water standards |
| ISSN号 | 0048-9697 |
| 中文摘要 | The distribution in water and sediment, the sources/sinks and the risk of perfluorinated compounds (PFCs) in Lake Taihu, China were investigated. The total PFCs concentration was 164 to 299 ng L-1 in water and 5.8 to 35 ng g(-1) (dw) in sediment. The highest concentrations of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) in water were 29.2 ng L-1 and 136 ng L-1. PFOS was largely associated with sediment, whereas short chain PFCs predominated in water. The partition coefficient (K-d) was positively correlated with the organic carbon fraction (f(oc)) for PFOS but not for the other PFCs. The organic carbon normalized partition coefficient (K-oc) increased by 0.51 log units for each additional CF2 moiety from perfluoro-butanesulfonate (PFBS) to PFOS. For the same chain length but different functional groups, the log K-oc, of PFOS was 1.35 units higher than PFOA. PFOS exhibited the highest affinity for sediment through the partition mechanism, and f(oc) affected the sediment as a sink of PFOS. Although there was no immediate health impact by the intake of the water alone, the consumption of aquatic products may cause potential health risks for animals/humans on the time scale of months to years. The relationship between the concentration, water-sediment distribution, bioaccumulation and toxicity should be considered in determining the water standards of PFCs. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000337259100090 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9524]  |
| 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 | Zhou, Qin. Distribution of perfluorinated compounds in Lake Taihu (China): Impact to human health and water standards[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2014,487(1):778-784. |
| APA | Zhou, Qin.(2014).Distribution of perfluorinated compounds in Lake Taihu (China): Impact to human health and water standards.SCIENCE OF THE TOTAL ENVIRONMENT,487(1),778-784. |
| MLA | Zhou, Qin."Distribution of perfluorinated compounds in Lake Taihu (China): Impact to human health and water standards".SCIENCE OF THE TOTAL ENVIRONMENT 487.1(2014):778-784. |
入库方式： OAI收割
来源：生态环境研究中心
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