| An evaluation of the impact of traffic on the distribution of PAHs and oxygenated PAHs in the soils and moss of the southeast Tibetan Plateau | |
Wei, Lijia; Yu, Zhigang; Zhu, Chengcheng; Chen, Yu; Pei, Zhiguo ; Li, Yingming; Yang, Ruiqiang; Zhang, Qinghua; Jiang, Guibin
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| 2023 | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
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| ISSN | 0048-9697 |
| Volume | 862Pages:160938-1-9 |
| Abstract | Contaminants in high-altitude mountains such as the Tibetan Plateau (TP) have attracted extensive attention due to their potential impact on fragile ecosystems. Rapid development of the economy and society has promoted pollution caused by local traffic emissions in the TP. Among the pollutants emitted by traffic, polycyclic aromatic hydrocarbons (PAHs) and oxygenated PAHs (OPAHs) are of particular concern due to their high toxicity. The TP provides an environment to explore the degree and range of contribution for traffic-induced PAHs and OPAHs. In this study, soils and moss were col-lected at different altitudes and distances from the G318 highway in the southeast TP. The total concentrations of PAHs (sigma 16PAHs) and OPAHs (sigma 6OPAHs) in soils were in the range of 3.29-119 ng/g dry weight (dw) and 0.54-9.65 ng/g dw, respectively. sigma 16PAH and sigma 6OPAH concentrations decreased logarithmically with increasing distance from traffic. A sig-nificantly positive correlation between sigma 16PAHs and altitude was found at sampling points closest to traffic. Dominant PAHs constituents in soil and moss included chrysene (CHR), benzo[g,h,i]perylene (BghiP), and benzo[b]fluoranthene (BbF); prevalent OPAH compounds were 9-fluorenone (9-FO) and 9,10-anthraquinone (ATQ). These compounds were related to characteristics of traffic emissions. The multiple diagnosis ratio and correlation analysis showed that exhaust emissions were the main source of the PAHs and OPAHs in the studied environment. PMF modeling quantification of the relative contribution of traffic emissions to PAHs in roadside soils was 45 % on average. The present study character-ized the extent and range of traffic-induced PAH and OPAH emissions, providing valuable information for understanding the environmental behaviors and potential risks of traffic-related contaminants in high-altitude areas. |
| Department | 环境化学与生态毒理学国家重点实验室 |
| Keyword | High-altitude mountains Tibetan Plateau PAHs Oxygenated PAHs Traffic emission |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/48475 |
| Collection | 环境化学与生态毒理学国家重点实验室 |
| Affiliation | 1.Chinese Academy of Sciences 2.University of Chinese Academy of Sciences, CAS 3.Research Center for Eco-Environmental Sciences (RCEES) |
| Recommended Citation GB/T 7714 | Wei, Lijia,Yu, Zhigang,Zhu, Chengcheng,et al. An evaluation of the impact of traffic on the distribution of PAHs and oxygenated PAHs in the soils and moss of the southeast Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,862:160938-1-9. |
| APA | Wei, Lijia.,Yu, Zhigang.,Zhu, Chengcheng.,Chen, Yu.,Pei, Zhiguo.,...&Jiang, Guibin.(2023).An evaluation of the impact of traffic on the distribution of PAHs and oxygenated PAHs in the soils and moss of the southeast Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,862,160938-1-9. |
| MLA | Wei, Lijia,et al."An evaluation of the impact of traffic on the distribution of PAHs and oxygenated PAHs in the soils and moss of the southeast Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 862(2023):160938-1-9. |
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| An evaluation of the（2107KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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