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Electrical Mobility Measurements of Fine-Particle Formation during Chamber Studies of Atmospheric Photochemical Reactions

Flagan, Richard C. and Wang, Shih Chen and Yin, Fangdong and Seinfeld, John H. and Reischl, George P. and Winklmayr, Wolfgang and Karch, Rudolf (1991) Electrical Mobility Measurements of Fine-Particle Formation during Chamber Studies of Atmospheric Photochemical Reactions. Environmental Science and Technology, 25 (5). pp. 883-890. ISSN 0013-936X. doi:10.1021/es00017a009.

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New approaches have been applied to electrical mobility measurement of ultrafine aerosol particles in smog chamber studies of secondary aerosol formation. With several mobility classifiers operating in parallel, rapid new particle formation was followed in the photochemical oxidation of dimethyl disulfide. When foreign particles were present before reaction was initiated, multiple bursts of nucleation and oscillations in the concentrations of 3.4-nm particles were observed. Later experiments used the scanning electrical mobility spectrometer to make high-resolution particle size distribution measurements. With this measurement method, the rapid growth of nuclei from their initial appearance at 10-nm size was followed in hydrocarbon/NO_x and hydrocarbon/NO_x/SO_2 reactions. Again, multiple bursts of nucleation were observed in some experiments, and insights were gained into particle growth mechanisms.

Item Type:Article
Related URLs:
URLURL TypeDescription
Flagan, Richard C.0000-0001-5690-770X
Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 1991 American Chemical Society Received for review July 23, 1990. Accepted December 16, 1990. This research was supported through grants from the National Science Foundation, the Coordinating Research Council, and the Austrian Fonds zur Forderung der wissenschaftlichen Forschung.
Funding AgencyGrant Number
Coordinating Research CouncilUNSPECIFIED
Fonds zur Förderung der wissenschaftlichen ForschungUNSPECIFIED
Issue or Number:5
Record Number:CaltechAUTHORS:20150805-111504231
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Official Citation:Electrical mobility measurements of fine-particle formation during chamber studies of atmospheric photochemical reactions Richard C. Flagan, Shih Chen Wang, Fangdong Yin, John H. Seinfeld, Georg Reischl, Wolfgang Winklmayr, and Rudolf Karch Environmental Science & Technology 1991 25 (5), 883-890 DOI: 10.1021/es00017a009
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59223
Deposited By: Irina Meininger
Deposited On:05 Nov 2015 23:53
Last Modified:10 Nov 2021 22:17

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