DOI: 10.1016/j.atmosenv.2017.11.029
Scopus记录号: 2-s2.0-85034648217
论文题名: PAHs in Chinese atmosphere Part I: Concentration, source and temperature dependence
作者: Ma W ; -L ; , Liu L ; -Y ; , Jia H ; -L ; , Yang M ; , Li Y ; -F
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 173 起始页码: 330
结束页码: 337
语种: 英语
英文关键词: Atmosphere
; China
; PAHs
; Seasonal variation
; Source apportionment
; Temperature dependence
Scopus关键词: Aromatic hydrocarbons
; Coal combustion
; Earth atmosphere
; Polycyclic aromatic hydrocarbons
; Principal component analysis
; Temperature distribution
; Urban growth
; Atmospheric polycyclic aromatic hydrocarbons
; Atmospheric transport
; Average concentration
; China
; Seasonal variation
; Source apportionment
; Temperature dependence
; Vehicle exhausts
; Atmospheric temperature
; coal
; polycyclic aromatic hydrocarbon derivative
; air temperature
; atmosphere
; atmospheric transport
; concentration (composition)
; PAH
; pollutant source
; seasonal variation
; source apportionment
; urban area
; air quality control
; air sampling
; ambient air
; Article
; atmospheric transport
; China
; combustion
; exhaust gas
; principal component analysis
; priority journal
; seasonal variation
; temperature dependence
; winter
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The study on atmospheric polycyclic aromatic hydrocarbons (PAHs) in China has regional and global significance to understand the large scale atmospheric transport of PAHs. In this study, 16 US EPA priority PAHs were analyzed in more than 500 pairs of gas and particle phases samples, which were collected on the same schedule on a weekly basis from August 2008 to July 2009 at 11 urban sites (6 northern cities and 5 southern cities) across China. The average concentration was 239 ± 329 ng/m3 and 165 ± 164 ng/m3 for the northern cities and the southern cities, respectively. Different seasonal variations of atmospheric PAHs were observed between northern cities and southern cities, which were mainly caused by the different temperature effects in winter. Identified by principal component analysis, coal combustion and vehicle exhaust were the major sources of atmospheric PAHs in northern and southern cities of China, respectively. The temperature dependences of atmospheric PAHs were also different, which were caused by the different influences of temperature on identified sources. To our knowledge, this is the first comprehensive study to report the difference with concentrations, seasonal variations, sources and temperature dependences of atmospheric PAHs between northern cities and southern cities in China. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83158
Appears in Collections: 气候变化事实与影响
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作者单位: International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China; IJRC-PTS, Dalian Maritime University, Dalian, China
Recommended Citation:
Ma W,-L,, Liu L,et al. PAHs in Chinese atmosphere Part I: Concentration, source and temperature dependence[J]. Atmospheric Environment,2018-01-01,173