Emissions of trace organic gases from western U.S. wildfires based on WE-CAN aircraft measurements

We present emission measurements of volatile organic compounds (VOCs) for western U.S. wildland fires made on the NSF/NCAR C-130 research aircraft during the Western Wildfire Experiment for Cloud Chemistry, Aerosol Absorption, and Nitrogen (WE-CAN) field campaign in summer 2018. VOCs were measured with complementary instruments onboard the C-130, including a proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS) and two gas chromatography (GC)-based methods. Agreement within combined instrument uncertainties (50% for 57 individual VOC EFs representing more than half the organic carbon mass. Finally, we found little fire-to-fire variability for the mass fraction contributions of individual species to the total measured VOC emissions, suggesting that a single speciation profile can describe VOC emissions for the wildfires in coniferous ecosystems sampled during WE-CAN.

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Author Permar, W.
Wang, Q.
Selimovic, V.
Wielgasz, C.
Yokelson, R. J.
Hornbrook, Rebecca
Hills, Alan J.
Apel, Eric C.
Ku, I.
Zhou, Y.
Sive, B. C.
Sullivan, A. P.
Collett, J. L.
Campos, Teresa
Palm, B. B.
Peng, Q.
Thornton, J. A.
Garofalo, L. A.
Farmer, D. K.
Kreidenweis, S. M.
Levin, E. J. T.
DeMott, P. J.
Flocke, Frank M.
Fischer, E. V.
Hu, L.
Publisher UCAR/NCAR - Library
Publication Date 2021-06-16T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Resource Version N/A
Topic Category geoscientificInformation
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Metadata Date 2025-07-11T16:14:41.186734
Metadata Record Identifier edu.ucar.opensky::articles:24488
Metadata Language eng; USA
Suggested Citation Permar, W., Wang, Q., Selimovic, V., Wielgasz, C., Yokelson, R. J., Hornbrook, Rebecca, Hills, Alan J., Apel, Eric C., Ku, I., Zhou, Y., Sive, B. C., Sullivan, A. P., Collett, J. L., Campos, Teresa, Palm, B. B., Peng, Q., Thornton, J. A., Garofalo, L. A., Farmer, D. K., Kreidenweis, S. M., Levin, E. J. T., DeMott, P. J., Flocke, Frank M., Fischer, E. V., Hu, L.. (2021). Emissions of trace organic gases from western U.S. wildfires based on WE-CAN aircraft measurements. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7ms3x56. Accessed 15 August 2025.

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