Secondary organic aerosol formation from photo-oxidation of toluene with NO_x and SO₂: Chamber simulation with purified air versus urban ambient air as matrix

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• 作者：Wei Deng^a ; ^b ; Tengyu Liu^a ; Yanli Zhang^a ; ^c ; ^{zhang_yl86@gig.ac.cn} ; Shuping Situ^d ; Qihou Hu^a ; Quanfu He^a ; Zhou Zhang^a ; Sujun Lü ; ^a ; ^b ; Xinhui Bi^a ; Xuemei Wang^d ; Antoinette Boreave^e ; Christian George^e ; Xiang Ding^a ; Xinming Wang^a ; ^c ; ^{wangxm@gig.ac.cn}
• 关键词：Secondary organic aerosols ; Toluene ; Chamber simulation ; Purified air ; Ambient air ; Sulfate ; Particle acidity ; Matrix effect
• 刊名：Atmospheric Environment
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：150
• 期：Complete
• 页码：67-76
• 全文大小：800 K
• 卷排序：150

文摘

Photo-oxidation of toluene/SO2/NOx in chamber in ambient air versus in purified air. Higher SOA productions and yields in matrix of ambient air than of purified air. Enhanced SO2 degradation and sulfate formation in ambient air matrix. Higher particle acidity in ambient air matrix promoted acid-catalyzed SOA formation. Elevated OH levels observed in ambient air matrix than in purified air matrix.