Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-1013-2019 |
Speciated and total emission factors of particulate organics from burning western US wildland fuels and their dependence on combustion efficiency | |
Jen, Coty N.1,7; Hatch, Lindsay E.2,3; Selimovic, Vanessa4; Yokelson, Robert J.4; Weber, Robert1; Fernandez, Arantza E.5; Kreisberg, Nathan M.5; Barsanti, Kelley C.2,3; Goldstein, Allen H.6 | |
2019-01-25 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:2页码:1013-1026 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Western US wildlands experience frequent and large-scale wildfires which are predicted to increase in the future. As a result, wildfire smoke emissions are expected to play an increasing role in atmospheric chemistry while negatively impacting regional air quality and human health. Understanding the impacts of smoke on the environment is informed by identifying and quantifying the chemical compounds that are emitted during wildfires and by providing empirical relationships that describe how the amount and composition of the emissions change based upon different fire conditions and fuels. This study examined particulate organic compounds emitted from burning common western US wildland fuels at the US Forest Service Fire Science Laboratory. Thousands of intermediate and semi-volatile organic compounds (I/SVOCs) were separated and quantified into fire-integrated emission factors (EFs) using a thermal desorption, two-dimensional gas chromatograph with online derivatization coupled to an electron ionization/vacuum ultraviolet high-resolution time-of-flight mass spectrometer (TD-GC x GC-EI/VUV-HRToFMS). Mass spectra, EFs as a function of modified combustion efficiency (MCE), fuel source, and other defining characteristics for the separated compounds are provided in the accompanying mass spectral library. Results show that EFs for total organic carbon (OC), chemical families of I/SVOCs, and most individual I/SVOCs span 2-5 orders of magnitude, with higher EFs at smoldering conditions (low MCE) than flaming. Logarithmic fits applied to the observations showed that log (EFs) for particulate organic compounds were inversely proportional to MCE. These measurements and relationships provide useful estimates of EFs for OC, elemental carbon (EC), organic chemical families, and individual I/SVOCs as a function of fire conditions. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456791600002 |
WOS关键词 | MOLECULAR TRACERS ; CROP RESIDUE ; LABORATORY MEASUREMENTS ; FINE-PARTICLE ; UNITED-STATES ; COOKING FIRES ; GAS EMISSIONS ; AEROSOLS ; IDENTIFICATION ; RESOLUTION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31073 |
专题 | 地球科学 |
作者单位 | 1.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA; 2.Univ Calif Riverside, Ctr Environm Res & Technol, Dept Chem & Environm Engn, Riverside, CA 92507 USA; 3.Univ Calif Riverside, Ctr Environm Res & Technol, Coll Engn, Riverside, CA 92507 USA; 4.Univ Montana, Dept Chem, Missoula, MT 59812 USA; 5.Aerosol Dynam Inc, Berkeley, CA 94710 USA; 6.Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA; 7.Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA |
推荐引用方式 GB/T 7714 | Jen, Coty N.,Hatch, Lindsay E.,Selimovic, Vanessa,et al. Speciated and total emission factors of particulate organics from burning western US wildland fuels and their dependence on combustion efficiency[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(2):1013-1026. |
APA | Jen, Coty N..,Hatch, Lindsay E..,Selimovic, Vanessa.,Yokelson, Robert J..,Weber, Robert.,...&Goldstein, Allen H..(2019).Speciated and total emission factors of particulate organics from burning western US wildland fuels and their dependence on combustion efficiency.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(2),1013-1026. |
MLA | Jen, Coty N.,et al."Speciated and total emission factors of particulate organics from burning western US wildland fuels and their dependence on combustion efficiency".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.2(2019):1013-1026. |
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