DOI: 10.1002/jgrd.50481
论文题名: Laboratory characterization of PM emissions from combustion of wildland biomass fuels
作者: Hosseini S. ; Urbanski S.P. ; Dixit P. ; Qi L. ; Burling I.R. ; Yokelson R.J. ; Johnson T.J. ; Shrivastava M. ; Jung H.S. ; Weise D.R. ; Miller J.W. ; Cocker D.R.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 17 起始页码: 9914
结束页码: 9929
语种: 英语
英文关键词: biomass burning
; emissions
; levoglucosan
; polycyclic aromatic hydrocarbons
; prescribed burns
; wood
Scopus关键词: Biomass
; Carbon
; Chlorine compounds
; Hardwoods
; Particulate emissions
; Polycyclic aromatic hydrocarbons
; Vegetation
; Wood
; Biomass-burning
; Carbon emission factors
; Combustion efficiencies
; Levoglucosan
; Particle mass distribution
; Particle number emission
; Prescribed burn
; Total polycyclic aromatic hydrocarbons
; Fuels
; atmospheric pollution
; biomass
; biomass burning
; carbon emission
; combustion
; deciduous tree
; inorganic salt
; laboratory method
; litter
; PAH
; particulate matter
; prescribed burning
; vegetation type
; wood
; United States
; Arctostaphylos
; Artemisia californica
; Ceanothus
; Prosopis
英文摘要: Particle emissions from open burning of southwestern (SW) and southeastern (SE) U.S. fuel types during 77 controlled laboratory burns are presented. The fuels include SW vegetation types: ceanothus, chamise/scrub oak, coastal sage scrub, California sagebrush, manzanita, maritime chaparral, masticated mesquite, oak savanna, and oak woodland, as well as SE vegetation types: 1 year, 2 year rough, pocosin, chipped understory, understory hardwood, and pine litter. The SW fuels burned at higher modified combustion efficiency (MCE) than the SE fuels resulting in lower particulate matter mass emission factor. Particle mass distributions for six fuels and particle number emission for all fuels are reported. Excellent mass closure (slope = 1.00, r2 = 0.94) between ions, metals, and carbon with total weight was obtained. Organic carbon emission factors inversely correlated (R2 = 0.72) with average MCE, while elemental carbon (EC) had little correlation with average MCE (R2 = 0.10). The EC/total carbon ratio sharply increased with MCE for MCEs exceeding 0.94. The average levoglucosan and total polycyclic aromatic hydrocarbon (PAH) emissions factors ranged from 25 to 1272 mg/kg fuel and 1.8 to 11.3 mg/kg fuel, respectively. No correlation between average MCE and emissions of PAHs/levoglucosan was found. Additionally, PAH diagnostic ratios were observed to be poor indicators of biomass burning. Large fuel type and regional dependency were observed in the emission rates of ammonium, nitrate, chloride, sodium, and potassium. Key Points Chem. and phys. charact. of emissions from Southewest and Southeast US veg.Comprehensive analysis of PAH/levoglucosan emissions from 77 burnsInvestigating effect of MCE and vegetation type on emissions ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63365
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: Bourns College of Engineering, University of California, 1084 Columbia Ave., Riverside, CA 92507, United States; Fire Sciences Laboratory, Rocky Mountain Research Station, USDA Forest Service, Missoula, MT, United States; National Research Center for Environmental Analysis and Measurement, Beijing, China; Department of Chemistry, University of Montana, Missoula, MT, United States; Pacific Northwest National Laboratories, Richland, WA, United States; Forest Fire Laboratory, Pacific Southwest Research Station, USDA Forest Service, Riverside, CA, United States
Recommended Citation:
Hosseini S.,Urbanski S.P.,Dixit P.,et al. Laboratory characterization of PM emissions from combustion of wildland biomass fuels[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(17)