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Azaarenes in fine particulate matter from the atmosphereof a Chinese megacity
Bandowe,B A.M(Bandowe,Benjamin A.Musa)1,2; Meusel, H(Meusel, Hannah)3; Huang,RJ(Huang,Rujin)4,5; Hoffmann, T(Hoffmann,Thorsten)7; Cao,JJ(Cao,Junji)4; Ho,KF(Ho,Kinfai)8; Bandowe,Benjamin A.Musa
发表期刊Environmental Science and Pollution Research
摘要Azaarenes (AZAs) are toxicologically relevant organic compounds with physicochemical properties that are significantly different from the well-studied polycyclic aromatic hydrocarbons (PAHs). However, little is known about their concentrations, seasonal variations, fate, and relationship with PAHs in air. This paper reports the temporal variations in the concentrations and composition patterns of AZAs in PM2.5 that was sampled once per 6 days from outdoor air of Xi’an, China from July 2008 to August 2009. The concentrations of the ∑AZAs, quinoline (QUI), benzo[h]quinoline (BQI), and acridine (ACR) in PM2.5 were 213–6441, 185–520, 69–2483, and 10–3544 pg m−3, respectively. These concentrations were higher than those measured in urban areas of Western Europe. AZA compositional patterns were dominated by BQI and ACR. The high concentration of AZAs, high AZA/related PAH ratio, and the dominance of three-ring AZAs (BQI and ACR) in PM2.5 of Xi’an are all in contrast to observations from Western European and North American cities. This contrast likely reflects differences in coal type and the more intense use of coal in China. The PM2.5-bound concentration of AZA in winter season (W) was higher than during the summer season (S) with W/S ratios of 5.7, 1.4, 4.1, and 13, for ∑AZAs, QUI, BQI, and ACR, respectively. Despite their significantly different physicochemical properties, AZAs were significantly (p < 0.05) positively correlated with their related PAHs and pyrogenic elemental carbon. The changes in AZA concentrations were positively correlated with ambient pressure but negatively correlated with ambient temperature, wind speed, and relative humidity. This trend is similar to that observed for the related PAHs. We conclude that Xi’an and possibly other Chinese cities have higher emission of AZAs into their atmosphere because of the more pronounced use of coal. We also conclude that in spite of differences in physicochemical properties between AZAs and related PAHs, the atmospheric dynamics and relationships with meteorological factors of both compound groups are similar.
关键词Azaarenes Pahs Pm2.5 Chinese Megacity Seasonal Change Meteorological Conditions
所属项目编号SNF 200021_131938/1 ; XDB05060500
项目资助者SwissNational Science Foundation ; SwissNational Science Foundation ; ChineseAcademy of "Science BStrategic Priority Research Program" ; ChineseAcademy of "Science BStrategic Priority Research Program"
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
通讯作者Bandowe,Benjamin A.Musa
作者单位1.Institute of Geography, University of Bern, Hallerstrasse 12,3012 Bern, Switzerland
2.Oeschger Centre for Climate Change Research, University of Bern,Falkenplatz 16, 3012 Bern, Switzerland
3.Multiphase Chemistry Department, Max Planck Institute forChemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany
4.Key Laboratory of Aerosol Chemistry & Physics, Institute of EarthEnvironment, Chinese Academy of Sciences, 10 Fenghui SouthRoad, 710075 Xi’an, China
5.Centre for Atmospheric and Marine Sciences, Xiamen HuaxiaUniversity, Xiamen 361024, China
6.Laboratory of Atmospheric Chemistry, Paul Scherrer Institute,5232 Villigen, Switzerland
7.Institute of Inorganic and Analytical Chemistry, Johannes GutenbergUniversity Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
8.Jockey Club School of Public Health & Primary Care, The ChineseUniversity of Hong Kong, Sha Tin, Hong Kong
GB/T 7714
Bandowe,B A.M,Meusel, H,Huang,RJ,et al. Azaarenes in fine particulate matter from the atmosphereof a Chinese megacity[J]. Environmental Science and Pollution Research,2016,23(16):16025–16036.
APA Bandowe,B A.M.,Meusel, H.,Huang,RJ.,Hoffmann, T.,Cao,JJ.,...&Bandowe,Benjamin A.Musa.(2016).Azaarenes in fine particulate matter from the atmosphereof a Chinese megacity.Environmental Science and Pollution Research,23(16),16025–16036.
MLA Bandowe,B A.M,et al."Azaarenes in fine particulate matter from the atmosphereof a Chinese megacity".Environmental Science and Pollution Research 23.16(2016):16025–16036.
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