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Title: Non-methane organic gas emissions from biomass burning: identification, quantification, and emission factors from PTR-ToF during the FIREX 2016 laboratory experiment

Abstract

Volatile and intermediate-volatility non-methane organic gases (NMOGs) released from biomass burning were measured during laboratory-simulated wildfires by proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF). We identified NMOG contributors to more than 150 PTR ion masses using gas chromatography (GC) pre-separation with electron ionization, H 3O + chemical ionization, and NO + chemical ionization, an extensive literature review, and time series correlation, providing higher certainty for ion identifications than has been previously available. Our interpretation of the PTR-ToF mass spectrum accounts for nearly 90 % of NMOG mass detected by PTR-ToF across all fuel types. The relative contributions of different NMOGs to individual exact ion masses are mostly similar across many fires and fuel types. The PTR-ToF measurements are compared to corresponding measurements from open-path Fourier transform infrared spectroscopy (OP-FTIR), broadband cavity-enhanced spectroscopy (ACES), and iodide ion chemical ionization mass spectrometry (I - CIMS) where possible. The majority of comparisons have slopes near 1 and values of the linear correlation coefficient, R 2, of > 0.8, including compounds that are not frequently reported by PTR-MS such as ammonia, hydrogen cyanide (HCN), nitrous acid (HONO), and propene. The exceptions include methylglyoxal and compounds that are known to be difficult to measure with one ormore » more of the deployed instruments. The fire-integrated emission ratios to CO and emission factors of NMOGs from 18 fuel types are provided. Finally, we provide an overview of the chemical characteristics of detected species. Non-aromatic oxygenated compounds are the most abundant. Furans and aromatics, while less abundant, comprise a large portion of the OH reactivity. The OH reactivity, its major contributors, and the volatility distribution of emissions can change considerably over the course of a fire.« less

Authors:
 [1];  [2];  [3];  [4];  [5]; ORCiD logo [5]; ORCiD logo [5]; ORCiD logo [5];  [6]; ORCiD logo [7]; ORCiD logo [7]; ORCiD logo [3];  [5]; ORCiD logo [4]; ORCiD logo [1]
  1. Univ. of Colorado, Boulder, CO (United States). Cooperative Inst. for Research in Environmental Sciences. Dept. of Chemistry; National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab. Chemical Sciences Division
  2. Univ. of Colorado, Boulder, CO (United States). Cooperative Inst. for Research in Environmental Sciences; National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab. Chemical Sciences Division; Yokohama City Univ. (Japan). Graduate School of Nanobioscience
  3. National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab. Chemical Sciences Division
  4. Univ. of Montana, Missoula, MT (United States). Dept. of Chemistry and Biochemistry
  5. Univ. of Colorado, Boulder, CO (United States). Cooperative Inst. for Research in Environmental Sciences; National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab. Chemical Sciences Division
  6. National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States). Earth System Research Lab. Chemical Sciences Division; Univ. of Colorado, Boulder, CO (United States). Dept. of Chemistry
  7. Univ. of Colorado, Boulder, CO (United States). Cooperative Inst. for Research in Environmental Sciences. Dept. of Chemistry
Publication Date:
Research Org.:
Univ. of Colorado, Boulder, CO (United States); National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States); Yokohama City Univ. (Japan)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23); National Oceanic and Atmospheric Administration (NOAA) (United States); Japan Society for the Promotion of Science (JSPS); Ministry of Education, Culture, Sports, Science and Technology (Japan)
OSTI Identifier:
1501920
Grant/Contract Number:  
SC0016559; NA16OAR4310100; 15K16117
Resource Type:
Accepted Manuscript
Journal Name:
Atmospheric Chemistry and Physics (Online)
Additional Journal Information:
Journal Name: Atmospheric Chemistry and Physics (Online); Journal Volume: 18; Journal Issue: 5; Journal ID: ISSN 1680-7324
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES

Citation Formats

Koss, Abigail R., Sekimoto, Kanako, Gilman, Jessica B., Selimovic, Vanessa, Coggon, Matthew M., Zarzana, Kyle J., Yuan, Bin, Lerner, Brian M., Brown, Steven S., Jimenez, Jose L., Krechmer, Jordan, Roberts, James M., Warneke, Carsten, Yokelson, Robert J., and de Gouw, Joost. Non-methane organic gas emissions from biomass burning: identification, quantification, and emission factors from PTR-ToF during the FIREX 2016 laboratory experiment. United States: N. p., 2018. Web. doi:10.5194/acp-18-3299-2018.
Koss, Abigail R., Sekimoto, Kanako, Gilman, Jessica B., Selimovic, Vanessa, Coggon, Matthew M., Zarzana, Kyle J., Yuan, Bin, Lerner, Brian M., Brown, Steven S., Jimenez, Jose L., Krechmer, Jordan, Roberts, James M., Warneke, Carsten, Yokelson, Robert J., & de Gouw, Joost. Non-methane organic gas emissions from biomass burning: identification, quantification, and emission factors from PTR-ToF during the FIREX 2016 laboratory experiment. United States. doi:10.5194/acp-18-3299-2018.
Koss, Abigail R., Sekimoto, Kanako, Gilman, Jessica B., Selimovic, Vanessa, Coggon, Matthew M., Zarzana, Kyle J., Yuan, Bin, Lerner, Brian M., Brown, Steven S., Jimenez, Jose L., Krechmer, Jordan, Roberts, James M., Warneke, Carsten, Yokelson, Robert J., and de Gouw, Joost. Wed . "Non-methane organic gas emissions from biomass burning: identification, quantification, and emission factors from PTR-ToF during the FIREX 2016 laboratory experiment". United States. doi:10.5194/acp-18-3299-2018. https://www.osti.gov/servlets/purl/1501920.
@article{osti_1501920,
title = {Non-methane organic gas emissions from biomass burning: identification, quantification, and emission factors from PTR-ToF during the FIREX 2016 laboratory experiment},
author = {Koss, Abigail R. and Sekimoto, Kanako and Gilman, Jessica B. and Selimovic, Vanessa and Coggon, Matthew M. and Zarzana, Kyle J. and Yuan, Bin and Lerner, Brian M. and Brown, Steven S. and Jimenez, Jose L. and Krechmer, Jordan and Roberts, James M. and Warneke, Carsten and Yokelson, Robert J. and de Gouw, Joost},
abstractNote = {Volatile and intermediate-volatility non-methane organic gases (NMOGs) released from biomass burning were measured during laboratory-simulated wildfires by proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF). We identified NMOG contributors to more than 150 PTR ion masses using gas chromatography (GC) pre-separation with electron ionization, H3O+ chemical ionization, and NO+ chemical ionization, an extensive literature review, and time series correlation, providing higher certainty for ion identifications than has been previously available. Our interpretation of the PTR-ToF mass spectrum accounts for nearly 90 % of NMOG mass detected by PTR-ToF across all fuel types. The relative contributions of different NMOGs to individual exact ion masses are mostly similar across many fires and fuel types. The PTR-ToF measurements are compared to corresponding measurements from open-path Fourier transform infrared spectroscopy (OP-FTIR), broadband cavity-enhanced spectroscopy (ACES), and iodide ion chemical ionization mass spectrometry (I- CIMS) where possible. The majority of comparisons have slopes near 1 and values of the linear correlation coefficient, R2, of > 0.8, including compounds that are not frequently reported by PTR-MS such as ammonia, hydrogen cyanide (HCN), nitrous acid (HONO), and propene. The exceptions include methylglyoxal and compounds that are known to be difficult to measure with one or more of the deployed instruments. The fire-integrated emission ratios to CO and emission factors of NMOGs from 18 fuel types are provided. Finally, we provide an overview of the chemical characteristics of detected species. Non-aromatic oxygenated compounds are the most abundant. Furans and aromatics, while less abundant, comprise a large portion of the OH reactivity. The OH reactivity, its major contributors, and the volatility distribution of emissions can change considerably over the course of a fire.},
doi = {10.5194/acp-18-3299-2018},
journal = {Atmospheric Chemistry and Physics (Online)},
number = 5,
volume = 18,
place = {United States},
year = {2018},
month = {3}
}

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Works referenced in this record:

Influence of pyrolysis temperature and time on the cellulose fast pyrolysis products: Analytical Py-GC/MS study
journal, November 2011

  • Lu, Qiang; Yang, Xiao-chu; Dong, Chang-qing
  • Journal of Analytical and Applied Pyrolysis, Vol. 92, Issue 2, p. 430-438
  • DOI: 10.1016/j.jaap.2011.08.006