气候变化领域集成服务门户(CCPortal): Biomass burning organic aerosol from prescribed burning and other activities in the United States

CCPortal

DOI	10.1016/j.atmosenv.2020.117753
	Biomass burning organic aerosol from prescribed burning and other activities in the United States
	Theodoritsi G.N.; Posner L.N.; Robinson A.L.; Yarwood G.; Koo B.; Morris R.; Mavko M.; Moore T.; Pandis S.N.
发表日期	2020
ISSN	13522310
卷号	241
英文摘要	A three-dimensional chemical transport model, PMCAMx-SR, was applied in the continental U.S. to investigate the contribution of prescribed burning and other biomass burning sources to the total organic aerosol (OA) concentrations. Simulations were performed during three seasonally-representative months (April, July and September 2008). Prescribed biomass burning organic aerosol (bbOA) emission rates were estimated to be approximately 300, 80 and 250 tn d−1 during April, July and September respectively. Prescribed burning was limited during July due to the prevailing weather conditions. Prescribed burning is responsible for 45% of the total bbOA emissions during the simulated spring period, 20% during the fall, and just 3% during the summer. The predicted maximum hourly prescribed bbOA concentration reached approximately 100 μg m−3 during April in South Carolina and during September in New Mexico, whereas it was less than 15 μg m−3 during July in Arkansas. The average contribution of prescribed burning to OA in the continental U.S. is quite low (less than 5%) and 60–70% is predicted to be secondary OA. Biomass burning secondary organic aerosol (bbSOA) levels far away from the prescribed fires are predicted to exceed 2 μg m−3. In states with intensive prescribed burning activities this source is predicted to contribute 20–40% of the OA on a monthly average basis. In these states (for example South Carolina during April), the predictions reveal that people can be exposed for 20 h per month on average to bbOA levels exceeding 5 μg m−3 and for 200 h to levels above 0.5 μg m−3. This should be contrasted to 220 h of exposure to bbOA above 5 μg m−3 and 650 h to bbOA above 0.5 μg m−3 for states and periods with intense wild fires (for example California during July). © 2020 Elsevier Ltd
语种	英语
scopus关键词	Aerosols; Biomass; Biomass-burning; Emission rates; Organic aerosol; Prescribed burning; Prescribed fires; Secondary organic aerosols; South Carolina; Three dimensional chemicals; Atmospheric movements; aerosol; biomass burning; prescribed burning; seasonal variation; spatiotemporal analysis; Arkansas; article; biomass; California; human; New Mexico; prediction; prescribed burning; secondary organic aerosol; simulation; South Carolina; spring; summer; weather; wildfire; United States
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144965
作者单位	Department of Chemical Engineering, University of Patras, Patras, Greece; Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), Patras, Greece; Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, United States; Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, United States; Ramboll US Corporation, NovatoCA, United States; Bay Area Air Quality Management District, San Francisco, CA, United States; Air Sciences Inc., GoldenCO, United States; Western States Air Resources Council, Fort Collins, CO, United States
推荐引用方式 GB/T 7714	Theodoritsi G.N.,Posner L.N.,Robinson A.L.,et al. Biomass burning organic aerosol from prescribed burning and other activities in the United States[J],2020,241.
APA	Theodoritsi G.N..,Posner L.N..,Robinson A.L..,Yarwood G..,Koo B..,...&Pandis S.N..(2020).Biomass burning organic aerosol from prescribed burning and other activities in the United States.Atmospheric Environment,241.
MLA	Theodoritsi G.N.,et al."Biomass burning organic aerosol from prescribed burning and other activities in the United States".Atmospheric Environment 241(2020).