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	Second organic aerosol formation by irradiation of alpha-pinene-NOx-H2O in an indoor smog chamber for atmospheric chemistry and physics
	Zhao Zhe ; Hao JiMing ; Li JunHua ; Wu Shan
	2010-05-10 ; 2010-05-10
关键词	alpha-pinene photo-oxidation SOA chamber experiment seed particles CATALYZED HETEROGENEOUS REACTIONS ALPHA-PINENE ABSORPTION-MODEL SULFATE AEROSOL SOA FORMATION GROWTH PHOTOOXIDATION OZONE WATER ACID Multidisciplinary Sciences
中文摘要	Ozone(O-3) and secondary organic aerosol (SOA) are considered to be the most serious secondary air pollutants of concern in most metropolitan areas, as well as for Beijing. In this study, O-3 and SOA formation potential of alpha-pinene, the most abundant biogenic VOCs, is investigated at Tsinghua Indoor Chamber Facility. The experiments were conducted under atmospheric relevant HCs/NOx ratios in both presence and absence of ammonia sulfate seed aerosol. A Scanning Mobility Particle Sizer system (3936, TSI) and a Condensation Particle Counter (3010, TSI) were used to study the SOA formation and a gas chromatograph (GC) equipped with a DB-5 column and a flame ionization detector (FID) was used to measure alpha-pinene simultaneously. The results show that the presence of ammonia sulfate seed aerosol did not change the formation trend of O-3, but significantly contribute to SOA formation. A strong linear relationship (r(2) = 0.90) between SOA yield enhancement (Delta Y*) and surface concentration of seed aerosol (PM (i,s) )has been found, denoting that the PMi,s is the control factor for SOA yield enhancement. And the possible reason for the enhancement is acid-catalyzed heterogeneous reactions.
语种	英语 ; 英语
出版者	SCIENCE CHINA PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/23357]
专题	清华大学
推荐引用方式 GB/T 7714	Zhao Zhe,Hao JiMing,Li JunHua,et al. Second organic aerosol formation by irradiation of alpha-pinene-NOx-H2O in an indoor smog chamber for atmospheric chemistry and physics[J],2010, 2010.
APA	Zhao Zhe,Hao JiMing,Li JunHua,&Wu Shan.(2010).Second organic aerosol formation by irradiation of alpha-pinene-NOx-H2O in an indoor smog chamber for atmospheric chemistry and physics..
MLA	Zhao Zhe,et al."Second organic aerosol formation by irradiation of alpha-pinene-NOx-H2O in an indoor smog chamber for atmospheric chemistry and physics".(2010).

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