PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment
文献类型：期刊论文
| 作者 | Feng, Baihuan2,3; Li, Lijuan1; Xu, Hongbing2; Wang, Tong2; Wu, Rongshan2; Chen, Jie2; Zhang, Yi2 ; Liu, Shuo2; Ho, Steven Sai Hang1; Cao, Junji1
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
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| 出版日期 | 2019-03-01 |
| 卷号 | 77页码:11-19 |
| 关键词 | PM2.5 PAHs Seasonal variation Sources Cancer risk assessment |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/j.jes.2017.12.025 |
| 通讯作者 | Huang, Wei(whuang@bjmu.edu.cn) |
| 英文摘要 | Polycyclic aromatic hydrocarbons (PAHs) have been of health concern due to its carcinogenesis and mutagenesis. In this study, we aimed to assess the variations, sources, and lifetime excessive cancer risk (ECR) attributable to PAHs bound to ambient particulate matters with aerodynamic diameter less than 2.5 mu m (PM2.5) in metropolitan Beijing China. We collected 24-hour integrated PM2.5 samples on daily basis between November 2014 and June 2015 across both central heating (cold months) and non-heating (warm months) seasons, and further analyzed the PAH components in these daily PM2.5 samples. Our results showed that total concentrations of PM2.5-bound PAHs varied between (88.6 +/- 75.4) ng/m(3) in the cold months and (11.0 +/- 5.9) ng/m(3) in the warm months. Benzo[a]pyrene (BaP), the carcinogenic marker of PAHs, averaged at 5.7 and 0.4 ng/m(3) in the cold and warm months, respectively. Source apportionment analyses illustrated that gasoline, biomass burning, diesel, coal combustion and cooking were the major contributors, accounting for 12.9%, 17.8%, 24.7%, 24.3% and 6.4% of PM2.5-bound PAHs, respectively. The BaP equivalent lifetime ECR from inhalation of PM2.5-bound PAHs was 16.2 cases per million habitants. Our results suggested that ambient particulate reduction from energy reconstruction and adaption of dean fuels would result in reductions PM2.5-bound PAHs and its associated cancer risks. However, as only particulate phased PAHs was analyzed in the present study, the concentration of ambient PAHs could be underestimated. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS关键词 | SOURCE APPORTIONMENT ; ORGANIC-COMPOUNDS ; OUTDOOR AIR ; N-ALKANES ; PARTICULATE MATTER ; URBAN ; IDENTIFICATION ; ATMOSPHERE ; PM10 ; CARCINOGENICITY |
| 资助项目 | Beijing Natural Science Foundation[L150001] ; Peking University Health Science Center 100 Talent Young Investigator Program ; Peking University Infrastructure Fund for Clinical Research[2013-3-02] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000463374900002 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Beijing Natural Science Foundation ; Peking University Health Science Center 100 Talent Young Investigator Program ; Peking University Infrastructure Fund for Clinical Research |
| 源URL | [http://ir.ieecas.cn/handle/361006/14168]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Huang, Wei |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth & Environm, Xian 710061, Shaanxi, Peoples R China 2.Peking Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth, Beijing 100871, Peoples R China 3.Peking Univ, Key Lab Mol Cardiovasc Sci, Minist Educ, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Baihuan,Li, Lijuan,Xu, Hongbing,et al. PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2019,77:11-19. |
| APA | Feng, Baihuan.,Li, Lijuan.,Xu, Hongbing.,Wang, Tong.,Wu, Rongshan.,...&Huang, Wei.(2019).PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,77,11-19. |
| MLA | Feng, Baihuan,et al."PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 77(2019):11-19. |
入库方式： OAI收割
来源：地球环境研究所
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