Contamination and sources of polychlorinated naphthalenes in the surface sediments of Chaobai River, China
文献类型：期刊论文
| 作者 | Du, Yanjun; Xu, Xiong ; Liu, Quanzhen; Lin, Lihua; Wang, Donghong
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| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 242期号:0页码:113934 |
| 关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS DIBENZO-P-DIOXINS ORGANIC POLLUTANTS LOWER REACHES PCBS PCNS BIPHENYLS PROFILES PCDD/FS BASIN |
| ISSN号 | 0147-6513 |
| 英文摘要 | In aquatic systems, sediment is both a sink for persistent organic pollutants (POPs) and a potential source of POPs release. Consequently, it is important to understand the pollution characteristics and sources of polychlorinated naphthalenes (PCNs) as POPs of Stockholm Convention in sediment for control of the ecological risk. Atmospheric deposition is a potential source of PCNs in sediment. However, there is no clear report on the contribution of atmospheric deposition to PCNs in sediments. In this study, the Chaobai River in China was selected because it is an important drinking water source that is not affected by wastewater discharge. Surface sediments from the river were analyzed for 75 PCN congeners by using high resolution gas chromatography combined with high resolution mass spectrometry. The total PCNs concentration ranged from 54 to 2266 (mean: 402) pg/g. The toxic equivalent quantity of 19 PCNs in surface sediments was 9.69 x 10(-2), and CN73, CN66/CN67, and CN63 had the largest contributions to this value. Dichlorinated and trichlorinated naphthalenes were the dominant homologs. The PCN data from the sediment samples in this study were combined with data for PCNs in ambient air from a literature, which has a good match with this study in both temporal and spatial scales. The contribution of atmospheric deposition to PCNs in the surface sediment was evaluated by comparing congener characteristics and correlation analysis. Our study indicated atmospheric transportation and deposition are important pathways for transport of PCNs into surface sediments. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47835]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 通讯作者 | Wang, Donghong |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Chinese Ctr Dis Control & Prevent, Natl Inst Environm Hlth, Beijing 100021, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Yanjun,Xu, Xiong,Liu, Quanzhen,et al. Contamination and sources of polychlorinated naphthalenes in the surface sediments of Chaobai River, China[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2022,242(0):113934. |
| APA | Du, Yanjun,Xu, Xiong,Liu, Quanzhen,Lin, Lihua,&Wang, Donghong.(2022).Contamination and sources of polychlorinated naphthalenes in the surface sediments of Chaobai River, China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,242(0),113934. |
| MLA | Du, Yanjun,et al."Contamination and sources of polychlorinated naphthalenes in the surface sediments of Chaobai River, China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 242.0(2022):113934. |
入库方式： OAI收割
来源：生态环境研究中心
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