Gaseous, PM 2.5 mass, and speciated emission factors from laboratory chamber peat combustion

• Published in: Atmospheric Chemistry and Physics
• Main Authors: J. G. Watson, J. Cao, L.-W. A. Chen, Q. Wang, J. Tian, X. Wang, S. Gronstal, S. S. H. Ho, A. C. Watts, J. C. Chow
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2019
• Subjects: Physics; QC1-999; Chemistry; QD1-999; Alaska; Siberia
• Online Access: https://doi.org/10.5194/acp-19-14173-2019; https://doaj.org/article/8e94bb9f5a4e4640accd04779f56ecc4

Peat fuels representing four biomes of boreal (western Russia and Siberia), temperate (northern Alaska, USA), subtropical (northern and southern Florida, USA), and tropical (Borneo, Malaysia) regions were burned in a laboratory chamber to determine gas and particle emission factors (EFs). Tests with 25 % fuel moisture were conducted with predominant smoldering combustion conditions (average modified combustion efficiency (MCE) <math xmlns="http://www.w3.org/1998/Math/MathML" id="M3" display="inline" overflow="scroll" dspmath="mathml"><mrow><mo>=</mo><mn mathvariant="normal">0.82</mn><mo>±</mo><mn mathvariant="normal">0.08</mn></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="66pt" height="10pt" class="svg-formula" dspmath="mathimg" md5hash="8f12f3d4d3810e9be6b29cbe44c42662"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="acp-19-14173-2019-ie00001.svg" width="66pt" height="10pt" src="acp-19-14173-2019-ie00001.png"/></svg:svg> ). Average fuel-based EF <math xmlns="http://www.w3.org/1998/Math/MathML" id="M4" display="inline" overflow="scroll" dspmath="mathml"><msub><mi/><mrow class="chem"><msub><mi mathvariant="normal">CO</mi><mn mathvariant="normal">2</mn></msub></mrow></msub></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="18pt" height="10pt" class="svg-formula" dspmath="mathimg" md5hash="304cc11e101ca2ea948d7e1f8bd141ca"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="acp-19-14173-2019-ie00002.svg" width="18pt" height="10pt" src="acp-19-14173-2019-ie00002.png"/></svg:svg> (carbon dioxide) are highest (1400 ± 38 g kg −1 ) and lowest (1073 ± 63 g kg −1 ) for the Alaskan and Russian peats, respectively. EF CO (carbon monoxide) and EF <math xmlns="http://www.w3.org/1998/Math/MathML" id="M10" display="inline" overflow="scroll" ...