Diurnal variations of atmospheric polycyclic aromatic hydrocarbons (PAHs) during three sequent winter haze episodes in Beijing, China
文献类型：期刊论文
| 作者 | Cao, Rong1,2; Zhang, Haijun1; Geng, Ningbo1; Fu, Qiang3; Teng, Man3; Zou, Lili1; Gao, Yuan1; Chen, Jiping1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 625页码:1486-1493 |
| ISSN号 | 0048-9697 |
| 关键词 | Polycyclic Aromatic Hydrocarbons Haze Meteorological Variables Gas-particle Partitioning |
| DOI | 10.1016/j.scitotenv.2017.12.335 |
| 文献子类 | Article |
| 英文摘要 | Gas- and particle-phase concentrations of 18 atmospheric polycyclic aromatic hydrocarbons (PAHs) were respectively measured during daytime and nighttime at an urban site of Beijing around the New Year's Day of 2015. The average concentration of total atmospheric PAHs (Sigma(18)PAHs) during three haze episodes (PM7.5 > 75 Lig7m5) was 1473.1 ng/m(3), which was 2.6 times higher than that (405.1 ng/m(3)) during normal periods (PM2.5 >75 fig/m'). Significant diurnal variations in the 18PAH concentrations, homologue pattern and gas particle partitioning were observed during haze episodes. There was a significantly negative correlation between 18PAH concentrations and planetary boundary layer heights. During haze episodes, PAHs in daytime atmosphere should mostly originate from the vehicle emission, while the main sources shift to coal combustion in the nighttime. The gas-particle distribution behavior of PAHs was decisively affected by air temperature and relative humidity, and generally simulated by junge-Pankow model. During haze episodes, the average benzo[a]pyrene equivalent concentration of atmospheric PAHs in the nighttime were 0.7-fold higher than that in the daytime, indicating that people staying out more during haze episode nighttime would pose a considerably higher cancer risk for inhalation exposure to PAHs. (C) 2017 Published by ElsevierB,V. |
| WOS关键词 | SOURCE APPORTIONMENT ; PARTICULATE PAHS ; NORTH CHINA ; BACK TRAJECTORIES ; SIZE DISTRIBUTION ; URBAN AREA ; PM2.5 ; TRANSPORT ; VARIABILITY ; REACTIVITY |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000426356600149 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/168720]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Zhang, Haijun; Chen, Jiping |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Separat Sci Analyt Chem, Dalian 116023, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Natl Environm Monitoring Ctr, State Environm Protect Key Lab Qual Control Envir, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Rong,Zhang, Haijun,Geng, Ningbo,et al. Diurnal variations of atmospheric polycyclic aromatic hydrocarbons (PAHs) during three sequent winter haze episodes in Beijing, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,625:1486-1493. |
| APA | Cao, Rong.,Zhang, Haijun.,Geng, Ningbo.,Fu, Qiang.,Teng, Man.,...&Chen, Jiping.(2018).Diurnal variations of atmospheric polycyclic aromatic hydrocarbons (PAHs) during three sequent winter haze episodes in Beijing, China.SCIENCE OF THE TOTAL ENVIRONMENT,625,1486-1493. |
| MLA | Cao, Rong,et al."Diurnal variations of atmospheric polycyclic aromatic hydrocarbons (PAHs) during three sequent winter haze episodes in Beijing, China".SCIENCE OF THE TOTAL ENVIRONMENT 625(2018):1486-1493. |
入库方式： OAI收割
来源：大连化学物理研究所
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