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DOI	10.5194/acp-19-8915-2019
	Temperature effects on sulfuric acid aerosol nucleation and growth: Initial results from the TANGENT study
	Tiszenkel L.; Stangl C.; Krasnomowitz J.; Ouyang Q.; Yu H.; Apsokardu M.J.; Johnston M.V.; Lee S.-H.
发表日期	2019
ISSN	16807316
起始页码	8915
结束页码	8929
卷号	19 期号:13
英文摘要	New particle formation (NPF) consists of two steps: nucleation and subsequent growth. At present, chemical and physical mechanisms that govern these two processes are not well understood. Here, we report initial results obtained from the TANGENT (Tandem Aerosol Nucleation and Growth Environment Tube) experiments. The TANGENT apparatus enables us to study these two processes independently. The present study focuses on the effects of temperature on sulfuric acid nucleation and further growth. Our results show that lower temperatures enhance both the nucleation and growth rate. However, under temperatures below 268K the effects of temperature on the nucleation rate become less significant and the nucleation rate becomes less dependent on relative humidity, indicating that particle formation in the conditions of our flow tube takes place via barrierless nucleation at lower temperatures. We also examined the growth of newly formed particles under differing temperature conditions for nucleation and further growth. Our results show that newly nucleated clusters formed at low temperatures can indeed survive evaporation and grow in a warmer environment in the presence of
语种	英语
scopus关键词	aerosol; evaporation; growth rate; low temperature; nucleation; ozone; relative humidity; sulfur dioxide; temperature effect
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144286
作者单位	Department of Atmospheric Science, University of Alabama in Huntsville, Huntsville, AL, United States; Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, United States; School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, China; Department of Environmental Science and Engineering, Fudan University, Shanghai, China
推荐引用方式 GB/T 7714	Tiszenkel L.,Stangl C.,Krasnomowitz J.,et al. Temperature effects on sulfuric acid aerosol nucleation and growth: Initial results from the TANGENT study[J],2019,19(13).
APA	Tiszenkel L..,Stangl C..,Krasnomowitz J..,Ouyang Q..,Yu H..,...&Lee S.-H..(2019).Temperature effects on sulfuric acid aerosol nucleation and growth: Initial results from the TANGENT study.Atmospheric Chemistry and Physics,19(13).
MLA	Tiszenkel L.,et al."Temperature effects on sulfuric acid aerosol nucleation and growth: Initial results from the TANGENT study".Atmospheric Chemistry and Physics 19.13(2019).