Atmospheric observations of new particle growth and shrinkage

Li Hao Young, Shan Hu Lee, Vijay P. Kanawade, Ta Chih Hsiao, Yungling L. Lee, Bing Fang Hwang, Yi Jyun Liou, Hui Tsung Hsu, Peng-Chi Tsai

研究成果: Conference contribution

1 引文 (Scopus)

摘要

In subtropical central Taiwan, a total of fourteen new particle formation (NPF) events were identified at four sites that represent urban, coastal, mountain and downwind area, respectively. Among them, there were five particle shrinkage events showing the grown particles shrank back to the smallest measureable size of ∼10 nm, thereby creating a unique "arch-like" shape in the size distribution contour plot. The particle shrinkage rates ranged from 5.1 to 7.6 nm h -1 . The corresponding particle volume losses suggest that a notable fraction of the condensable species that contributed to growth was semi-volatile. The particle shrinkage was related to strong atmospheric dilution, high ambient temperature and low relative humidity, thus favoring the evaporation of semi-volatile species from the particulate phase to the gas phase. Our observations show that the new particle growth could be a reversible process, in which the evaporating semi-volatile species are important for the growth of new particles to sizes of environmental health concerns.

原文English
主出版物標題Nucleation and Atmospheric Aerosols - 19th International Conference
頁面426-429
頁數4
DOIs
出版狀態Published - 2013 五月 14
事件19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013 - Fort Collins, CO, United States
持續時間: 2013 六月 232013 六月 28

出版系列

名字AIP Conference Proceedings
1527
ISSN(列印)0094-243X
ISSN(電子)1551-7616

Other

Other19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013
國家United States
城市Fort Collins, CO
期間13-06-2313-06-28

指紋

shrinkage
arches
Taiwan
mountains
particulates
ambient temperature
health
dilution
humidity
plots
evaporation
vapor phases

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

引用此文

Young, L. H., Lee, S. H., Kanawade, V. P., Hsiao, T. C., Lee, Y. L., Hwang, B. F., ... Tsai, P-C. (2013). Atmospheric observations of new particle growth and shrinkage. 於 Nucleation and Atmospheric Aerosols - 19th International Conference (頁 426-429). (AIP Conference Proceedings; 卷 1527). https://doi.org/10.1063/1.4803295
Young, Li Hao ; Lee, Shan Hu ; Kanawade, Vijay P. ; Hsiao, Ta Chih ; Lee, Yungling L. ; Hwang, Bing Fang ; Liou, Yi Jyun ; Hsu, Hui Tsung ; Tsai, Peng-Chi. / Atmospheric observations of new particle growth and shrinkage. Nucleation and Atmospheric Aerosols - 19th International Conference. 2013. 頁 426-429 (AIP Conference Proceedings).
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abstract = "In subtropical central Taiwan, a total of fourteen new particle formation (NPF) events were identified at four sites that represent urban, coastal, mountain and downwind area, respectively. Among them, there were five particle shrinkage events showing the grown particles shrank back to the smallest measureable size of ∼10 nm, thereby creating a unique {"}arch-like{"} shape in the size distribution contour plot. The particle shrinkage rates ranged from 5.1 to 7.6 nm h -1 . The corresponding particle volume losses suggest that a notable fraction of the condensable species that contributed to growth was semi-volatile. The particle shrinkage was related to strong atmospheric dilution, high ambient temperature and low relative humidity, thus favoring the evaporation of semi-volatile species from the particulate phase to the gas phase. Our observations show that the new particle growth could be a reversible process, in which the evaporating semi-volatile species are important for the growth of new particles to sizes of environmental health concerns.",
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Young, LH, Lee, SH, Kanawade, VP, Hsiao, TC, Lee, YL, Hwang, BF, Liou, YJ, Hsu, HT & Tsai, P-C 2013, Atmospheric observations of new particle growth and shrinkage. 於 Nucleation and Atmospheric Aerosols - 19th International Conference. AIP Conference Proceedings, 卷 1527, 頁 426-429, 19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013, Fort Collins, CO, United States, 13-06-23. https://doi.org/10.1063/1.4803295

Atmospheric observations of new particle growth and shrinkage. / Young, Li Hao; Lee, Shan Hu; Kanawade, Vijay P.; Hsiao, Ta Chih; Lee, Yungling L.; Hwang, Bing Fang; Liou, Yi Jyun; Hsu, Hui Tsung; Tsai, Peng-Chi.

Nucleation and Atmospheric Aerosols - 19th International Conference. 2013. p. 426-429 (AIP Conference Proceedings; 卷 1527).

研究成果: Conference contribution

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AU - Young, Li Hao

AU - Lee, Shan Hu

AU - Kanawade, Vijay P.

AU - Hsiao, Ta Chih

AU - Lee, Yungling L.

AU - Hwang, Bing Fang

AU - Liou, Yi Jyun

AU - Hsu, Hui Tsung

AU - Tsai, Peng-Chi

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Young LH, Lee SH, Kanawade VP, Hsiao TC, Lee YL, Hwang BF 等. Atmospheric observations of new particle growth and shrinkage. 於 Nucleation and Atmospheric Aerosols - 19th International Conference. 2013. p. 426-429. (AIP Conference Proceedings). https://doi.org/10.1063/1.4803295