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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, Lee1; Stangl, Chris2; Krasnomowitz, Justin2; Ouyang, Qi1; Yu, Huan3; Apsokardu, Michael J.2; Johnston, Murray V.2; Lee, Shan-Hu1,4 | |
2019-07-12 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:13页码:8915-8929 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
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 268 K 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 SO2 and ozone and potentially other contaminant vapors. These results imply that some heterogeneous reactions involving nanoparticles affect nucleation and growth of newly formed particles. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000475370200004 |
WOS关键词 | IONIZATION MASS-SPECTROMETER ; ION-INDUCED NUCLEATION ; PARTICLE-SIZE DISTRIBUTION ; CHEMICAL-IONIZATION ; HOMOGENEOUS NUCLEATION ; EXPERIMENTAL SETUP ; ALPHA-PINENE ; AMMONIA ; RATES ; DIMETHYLAMINE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/184951 |
专题 | 地球科学 |
作者单位 | 1.Univ Alabama, Dept Atmospher Sci, Huntsville, AL 35899 USA; 2.Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA; 3.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing, Jiangsu, Peoples R China; 4.Fudan Univ, Dept Environm Sci & Engn, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Tiszenkel, Lee,Stangl, Chris,Krasnomowitz, Justin,et al. Temperature effects on sulfuric acid aerosol nucleation and growth: initial results from the TANGENT study[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(13):8915-8929. |
APA | Tiszenkel, Lee.,Stangl, Chris.,Krasnomowitz, Justin.,Ouyang, Qi.,Yu, Huan.,...&Lee, Shan-Hu.(2019).Temperature effects on sulfuric acid aerosol nucleation and growth: initial results from the TANGENT study.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(13),8915-8929. |
MLA | Tiszenkel, Lee,et al."Temperature effects on sulfuric acid aerosol nucleation and growth: initial results from the TANGENT study".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.13(2019):8915-8929. |
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