Chemistry and Physics Faculty Articles
Title
Evolution of the Mixing State of Fine Aerosols During Haze Events in Shanghai
Document Type
Article
Publication Date
2-2012
Publication Title
Atmospheric Research
Keywords
Aerosol particle, Mixing state, Visibility, ATOFMS
ISSN
0169-8095
Volume
104-105
First Page
193
Last Page
201
Abstract
The composition and size of individual atmospheric particles were measured by aerosol time-of-flight mass spectrometry (ATOFMS) in Shanghai for the period December 14–23, 2008. Carbonaceous particles were the dominant aerosol type in terms of number fraction during the entire period. Noticeably, the mixing state of carbonaceous particles showed dramatic changes from fresh elemental carbon or biomass burning particles to aged ones with the addition of secondary components, mostly ammonium nitrate and secondary organic compounds, during heavy haze events. Our real-time single particle data suggest that change in the mixing state played an important role in increasing light extinction of aerosols during haze events in Shanghai.
NSUWorks Citation
Yang, F., Chen, H., Du, J., Yang, X., Gao, S., Chen, J., & Geng, F. (2012). Evolution of the Mixing State of Fine Aerosols During Haze Events in Shanghai. Atmospheric Research, 104-105, 193 - 201. https://doi.org/10.1016/j.atmosres.2011.10.005. Retrieved from https://nsuworks.nova.edu/cnso_chemphys_facarticles/53
DOI
10.1016/j.atmosres.2011.10.005
Comments
©2011 Elsevier B. V. All rights reserved.