Session 5 Secondary Organic Aerosols: Formation, Properties, and Atmospheric Evolution

Thursday, 14 January 2016: 1:30 PM-3:00 PM
Room 356 ( New Orleans Ernest N. Morial Convention Center)
Host: 18th Conference on Atmospheric Chemistry
Alla Zelenyuk, PNNL, Richland, WA and Jason Surratt, Univ. of North Carolina, Chapel Hill, NC

Recent laboratory and field studies provided new insights into formation, growth, phase, viscosity, and volatility of secondary organic aerosols (SOA). The data indicate that under most atmospheric conditions SOA particles are significantly more viscous and orders of magnitude less volatile than assumed in traditional modeling approaches. In addition, recent SOA formation yield measurements cast doubt on previously reported values. This session will broadly highlight new results of experimental and modeling studies that address these aspects of SOA and their effect on SOA atmospheric loadings, evolution, and effect on climate.

1:30 PM
1:45 PM
New Approaches for SOA Modeling Based on Recent Experimental Results (Invited Presentation)
Manishkumar Shrivastava, PNNL, Richland, WA; and A. Zelenyuk, R. C. Easter, J. D. Fast, C. Zhao, Y. Qian, P. Rasch, and S. Ghan
2:00 PM
Mulitphase Chemistry Promotes Isoprene SOA Formation: Recent Results from Field and Lab Studies
Jason D. Surratt, University of North Carolina, Chapel Hill, NC; and M. Riva, A. Gold, Y. H. Lin, Z. Zhang, S. H. Budisulistiorini, T. Cui, Y. Chen, W. Vizuete, W. Rattanavaraha, K. Chu, T. Riedel, J. A. Thornton, A. Zelenyuk, and M. Glasius

2:15 PM
2:30 PM
Using Microfluidics to Measure Surface-Bulk Partitioning of Aerosol Constituents
Andrew R. Metcalf, University of Minnesota, Minneapolis, MN; and H. Boyer and C. S. Dutcher

2:45 PM
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner