DOI: 10.1016/j.atmosenv.2017.11.002
Scopus记录号: 2-s2.0-85034420916
论文题名: Atmospheric PAHs, NPAHs, and OPAHs at an urban, mountainous, and marine sites in Northern China: Molecular composition, sources, and ageing
作者: Zhang J ; , Yang L ; , Mellouki A ; , Chen J ; , Chen X ; , Gao Y ; , Jiang P ; , Li Y ; , Yu H ; , Wang W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 173 起始页码: 256
结束页码: 264
语种: 英语
英文关键词: Gas-to-particle partitioning
; Marine site
; Mountain sites
; NPAHs
; OPAHs
; PAHs
Scopus关键词: Aromatic hydrocarbons
; Atmospheric movements
; Coal combustion
; Gas chromatography
; Landforms
; Location
; Mass spectrometry
; Polycyclic aromatic hydrocarbons
; Gas-to-particle partitioning
; Marine site
; Mountain sites
; NPAHs
; OPAHs
; Urban growth
; coal
; nitrate
; nitro polycyclic aromatic hydrocarbon
; oxypolycyclic aromatic hydrocarbon
; polycyclic aromatic hydrocarbon
; unclassified drug
; aging
; atmospheric pollution
; atmospheric transport
; chemical composition
; concentration (composition)
; marine ecosystem
; molecular analysis
; mountain environment
; PAH
; partitioning
; pollutant source
; urban pollution
; aging
; Article
; atmospheric transport
; biomass
; China
; combustion
; concentration ratio
; mass fragmentography
; molecular weight
; priority journal
; urban area
; China
; Lamprididae
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: 18 gaseous and particulate polycyclic aromatic hydrocarbons (PAHs), 16 nitro-derivative (NPAHs), and 7 oxy-derivative (OPAHs) were analyzed by Gas Chromatography-Mass Spectrometry (GC-MS) at three locations in Northern China, an urban site (Jinan), a marine site (Tuoji island), and a mountain site (Mt. Tai). The combined gas and particulate concentrations of 18 PAHs, 16 NPAHs, and 7 OPAHs were highest at the urban site (305.91, 2.80, and 9.05 ng/m3, respectively) and lowest at the mountain location (37.83, 0.27, and 1.59 ng/m3, respectively). A noticeable increase in the high molecular weight PAHs was observed during polluted conditions compared to clean conditions. Diagnostic ratios clearly demonstrated that coal/biomass combustion was the major PAH source in Northern China. The particulate PAHs were the most aged at the mountain site due to long-distance atmospheric transport. The formation rate of NPAHs was most efficient at the mountain location and during heavily polluted days at the urban and marine sites. In addition, the main formation pathway for NPAHs was through the OH initiated secondary reaction. NO3 radicals most significantly contributed to the NPAHs formation at night, during clear weather, and at the mountain site. The logKp value was lowest at the urban site for most individual compounds and highest at the mountain site. Higher logKp was found for NPAHs and OPAHs compared with their corresponding parent PAHs. The linear regression of logKp vs logPL 0 at the three sites suggested that the gas-particle partitioning of PAHs might be in non-equilibrium. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83134
Appears in Collections: 气候变化事实与影响
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作者单位: Environment Research Institute, Shandong University, Jinan, China; School of Environmental Science and Engineering, Shandong University, Jinan, China; Jiangsu Collaborative Innovation Center for Climate Change, China; Institut de Combustion, Aerothermique, Reactivité Environnement (ICARE), CNRS/OSUC, 1C Avenue de la Recherche Scientifique, Orléans Cedex 02, France; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan Tyndall Centre, Department of Environmental Science and Engineering, Fudan University, Shanghai, China; Shandong Analysis and Test Center, Shandong Academy of Science, Jinan, China
Recommended Citation:
Zhang J,, Yang L,, Mellouki A,et al. Atmospheric PAHs, NPAHs, and OPAHs at an urban, mountainous, and marine sites in Northern China: Molecular composition, sources, and ageing[J]. Atmospheric Environment,2018-01-01,173