Article ; Online: Impact of Biomass Burning Organic Aerosol Volatility on Smoke Concentrations Downwind of Fires.
Environmental science & technology
2023 Volume 57, Issue 44, Page(s) 17011–17021
Abstract: Biomass burning particulate matter (BBPM) affects regional air quality and global climate, with impacts expected to continue to grow over the coming years. We show that studies of North American fires have a systematic altitude dependence in measured ... ...
Abstract | Biomass burning particulate matter (BBPM) affects regional air quality and global climate, with impacts expected to continue to grow over the coming years. We show that studies of North American fires have a systematic altitude dependence in measured BBPM normalized excess mixing ratio (NEMR; ΔPM/ΔCO), with airborne and high-altitude studies showing a factor of 2 higher NEMR than ground-based measurements. We report direct airborne measurements of BBPM volatility that partially explain the difference in the BBPM NEMR observed across platforms. We find that when heated to 40-45 °C in an airborne thermal denuder, 19% of lofted smoke PM |
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MeSH term(s) | Smoke/analysis ; Air Pollutants/analysis ; Biomass ; Air Pollution/analysis ; Particulate Matter/analysis ; Fires ; Aerosols/analysis ; Environmental Monitoring/methods |
Chemical Substances | Smoke ; Air Pollutants ; Particulate Matter ; Aerosols |
Language | English |
Publishing date | 2023-10-24 |
Publishing country | United States |
Document type | Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. |
ISSN | 1520-5851 |
ISSN (online) | 1520-5851 |
DOI | 10.1021/acs.est.3c05017 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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