Integrated Experimental and Modeling Studies on Aerosol Evolution and Aging
EMSL Project ID
25697
Abstract
The objectives of this project are to characterize the time evolution of aerosol size, density, composition, and mixing state in an aerosol chamber, and b) link experiments to the development and evaluation of theoretical models of aerosol evolution and aging. Through this EMSL-user proposal, we will add the Single Particle Laser Ablation Time-of-flight (SPLAT) mass spectrometer to the current suite of instruments ported to the aerosol chamber facility at PNNL. As part of our ongoing experiments on secondary organic aerosol formation in the presence of different types of pre-existing seed aerosols, single particle measurements with SPLAT will provide us with aerosol evolution information of unprecedented detail. The resulting comprehensive datasets will be used for evaluating the performance of the new particle-based aerosol dynamics model being developed through the new Aerosol-Climate Initiative at PNNL.
Project Details
Project type
Large-Scale EMSL Research
Start Date
2007-07-10
End Date
2010-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Song C., R.A. Zaveri, M.L. Alexander, J.A. Thornton, S. Madronich, J.V. Ortega, and A. Zelenyuk, et al. 2007. "Effect of Hydrophobic Primary Organic Aerosols on Secondary Organic Aerosol Formation from Ozonolysis of a-Pinene." Geophysical Research Letters 34, no. 20:Paper # L20803. PNNL-SA-55416. doi:10.1029/2007GL030720
Vaden TD, C Song, RA Zaveri, D Imre, and A Zelenyuk. 2010. "Morphology of Mixed Primary and Secondary Organic Particles and the Adsorption of Spectator Organic Gases during Aerosol Formation." Proceedings of the National Academy of Sciences of the United States of America 107(15):6658-6663. doi:10.1073/pnas.0911206107
Yang J, M Stewart, GD Maupin, DR Herling, and A Zelenyuk. 2009. "Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency Studies Using Laboratory Generated Particles." Chemical Engineering Science 64(8):1625-1634.
Zaveri RA, CM Berkowitz, FJ Brechtel, MK Gilles, JM Hubbe, JT Jayne, LI Kleinman, A Laskin, S Madronich, TB Onasch, MS Pekour, SR Springston, JA Thornton, AV Tivanski, and DR Worsnop. 2010. "Nighttime Chemical Evolution of Aerosol and Trace Gases in a Power Plant Plume: Implications for Secondary Organic Nitrate and Organosulfate Aerosol Formation, NO? Radical Chemistry, and N?O? Heterogeneous Hydrolysis." Journal of Geophysical Research. D. (Atmospheres) 115:Art. No. D12304. doi:10.1029/2009JD013250