globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50828
论文题名:
Gas-particle partitioning of primary organic aerosol emissions: 3. Biomass burning
作者: May A.A.; Levin E.J.T.; Hennigan C.J.; Riipinen I.; Lee T.; Collett Jr. J.L.; Jimenez J.L.; Kreidenweis S.M.; Robinson A.L.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:19
起始页码: 11327
结束页码: 11338
语种: 英语
英文关键词: biomass burning ; gas-particle partitioning ; primary organic aerosol ; volatility distributions
Scopus关键词: Aerosols ; Biomass ; Evaporation ; Experiments ; Fuels ; Gas emissions ; Biomass-burning ; Chemical transport models ; Enthalpies of vaporization ; Gas-particle partitioning ; Mass accommodation coefficient ; Mass transfer limitation ; Organic aerosol ; Volatility distribution ; Residence time distribution ; aerosol ; atmospheric pollution ; biomass burning ; combustion ; concentration (composition) ; data set ; emission ; isotherm ; numerical model ; particulate matter ; volatile substance ; North America
英文摘要: Atmospheric organic aerosol concentrations depend in part on the gas-particle partitioning of primary organic aerosol (POA) emissions. Consequently, heating and dilution were used to investigate the volatility of biomass-burning smoke particles from combustion of common North American trees/shrubs/grasses during the third Fire Lab at Missoula Experiment. Fifty to eighty percent of the mass of biomass-burning POA evaporated when isothermally diluted from plume- (~1000 μg m-3) to ambient-like concentrations (~10 μg m-3), while roughly 80% of the POA evaporated upon heating to 100°C in a thermodenuder with a residence time of ~14 sec. Therefore, the majority of the POA emissions were semivolatile. Thermodenuder measurements performed at three different residence times indicated that there were not substantial mass transfer limitations to evaporation (i.e., the mass accommodation coefficient appears to be between 0.1 and 1). An evaporation kinetics model was used to derive volatility distributions and enthalpies of vaporization from the thermodenuder data. A single volatility distribution can be used to represent the measured gas-particle partitioning from the entire set of experiments, including different fuels, organic aerosol concentrations, and thermodenuder residence times. This distribution, derived from the thermodenuder measurements, also predicts the dilution-driven changes in gas-particle partitioning. This volatility distribution and associated emission factors for each fuel studied can be used to update emission inventories and to simulate the gas-particle partitioning of biomass-burning POA emissions in chemical transport models. Key Points The majority of POA emissions from biomass fuels were semivolatile Parameters for simulating gas-particle partitioning of biomass POA were derived Existing emissions inventories and models can be updated using these parameters ©2013. American Geophysical Union. All Rights Reserved.
资助项目: DE-SC0006035
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63258
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Center for Atmospheric Particle Studies, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, United States; Department of Atmospheric Science, Colorado State University, Fort Collins CO, United States; Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland, Baltimore County, Baltimore MD, United States; Department of Applied Environmental Science, Stockholm University, Stockholm, Sweden; Department of Environmental Science, Hankuk University of Foreign Studies, Seoul, South Korea; Department of Chemistry and Biochemistry, University of Colorado, Boulder CO, United States; Cooperative Institute for Research in the Environmental Sciences, Boulder CO, United States

Recommended Citation:
May A.A.,Levin E.J.T.,Hennigan C.J.,et al. Gas-particle partitioning of primary organic aerosol emissions: 3. Biomass burning[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(19)
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