KMS of Research Center for Eco-Environmental Sciences， CAS
| Contribution of atmospheric deposition to halogenated polycyclic aromatic hydrocarbons in surface sediments: A validation study | |
Du, Yanjun; Xu, Xiong ; Liu, Quanzhen; Lin, Lihua; Bai, Lu; Wang, Donghong
| |
| 2022-04-01 | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| ISSN | 0048-9697 |
| Volume | 815Issue:0Pages:152889 |
| Abstract | Surface sediments are both sinks and sources of chlorinated and brominated polycyclic aromatic hydrocarbons (Cl/Br-PAHs) in the environment. It is important to study the source of Cl/Br-PAHs in the surface sediment for controlling the ecological risk of Cl/Br-PAHs. Clues from the previous research suggested that atmospheric deposition may be one of the main sources of Cl/Br-PAHs in sediment. However, due to the lack of matched sediment and atmospheric Cl/Br-PAHs data, the contribution of atmospheric deposition to Cl/Br-PAHs in sediment has not been confirmed. This study investigated the characteristics of 37 Cl/Br-PAHs and validated the contribution of atmospheric sedimentation to Cl/Br-PAHs in sediment by a case study in the surface sediments of the Chaobai River, China. To the best of our knowledge, four Cl-PAHs and eleven Br-PAHs were found in the sediments for the first time. The total concentrations of 18 Cl-PAH species were 76-2301 pg/g, while those of Br-PAHs were 6-238 pg/g. The toxic equivalent quantities (TEQ) of the Cl-PAHs in surface sediments in the water conservation area and in the urban comparison area were 0.73 pg TEQ/g and 2.21 pg TEQ/g, respectively. The TEQ of the Br-PAHs in surface sediments in the water conservation area and in the urban comparison area were 2.85 x 10(-2) pg TEQ/g and 6.6 x 10(-2) pg TEQ/g, respectively. Based on the characteristics comparison and correlation analysis of Cl/Br-PAHs in both sediment and ambient air, it was initially confirmed the contribution of atmospheric deposition to Cl-PAHs in sediments. However, there was no conclusion of Br-PAHs in sediment similar to Cl-PAHs in sediment. It was inferred that the sources of Br-PAHs in sediment were different from Cl-PAHs in sediment. |
| Department | 中国科学院饮用水科学与技术重点实验室 ; 中国科学院饮用水科学与技术重点实验室 |
| Keyword | BROMINATED FLAME RETARDANTS GAS-CHROMATOGRAPHY MASS-SPECTROMETRY SIZE DISTRIBUTION TIDAL FLATS PAHS PARENT SHENZHEN URBAN SOIL |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47836 |
| Collection | 中国科学院饮用水科学与技术重点实验室 |
| Corresponding Author | Wang, Donghong |
| Affiliation | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Ctr Dis Control & Prevent, Natl Inst Environm Hlth, Beijing 100021, Peoples R China |
| Recommended Citation GB/T 7714 | Du, Yanjun,Xu, Xiong,Liu, Quanzhen,et al. Contribution of atmospheric deposition to halogenated polycyclic aromatic hydrocarbons in surface sediments: A validation study[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,815(0):152889. |
| APA | Du, Yanjun,Xu, Xiong,Liu, Quanzhen,Lin, Lihua,Bai, Lu,&Wang, Donghong.(2022).Contribution of atmospheric deposition to halogenated polycyclic aromatic hydrocarbons in surface sediments: A validation study.SCIENCE OF THE TOTAL ENVIRONMENT,815(0),152889. |
| MLA | Du, Yanjun,et al."Contribution of atmospheric deposition to halogenated polycyclic aromatic hydrocarbons in surface sediments: A validation study".SCIENCE OF THE TOTAL ENVIRONMENT 815.0(2022):152889. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Contribution of atmo（4244KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment