Deposition of Potassium on Chimney Wall from Wood Stove Smoke: Implication for the Influence of Domestic Biomass Burning on Atmospheric Aerosols

0569423 - ÚCHP 2024 RIV CH eng J - Journal Article
Kawamura, K. - Kunwar, B. - Deshmukh, D.K. - Vodička, Petr - Haque, Md.M.
Deposition of Potassium on Chimney Wall from Wood Stove Smoke: Implication for the Influence of Domestic Biomass Burning on Atmospheric Aerosols.
Atmosphere. Roč. 14, č. 3 (2023), č. článku 484. E-ISSN 2073-4433
Grant - others:JSPS(JP) 24221001; JSPS(JP) 18K18791; JPJSJRP(JP) 20181601
Institutional support: RVO:67985858
Keywords : domestic burning * wood stove * potassium (K)
OECD category: Meteorology and atmospheric sciences
Impact factor: 2.9, year: 2022
Method of publishing: Open access
https://www.mdpi.com/2073-4433/14/3/484

Based on the field studies of biomass burning plumes in Alaska, we hypothesized that potassium (K) may be significantly scavenged, during wood stove burning, as deposits on the inner wall of the chimney where the temperature decreases with the height. To test this hypothesis, we analyzed chimney deposit samples collected from the inner wall of a chimney (6 m long) for the measurement of major ions and anhydrosugars including levoglucosan (Lev). Concentrations of K were found to be highest in the lower part of the chimney with a decreasing trend with height, whereas Lev showed an opposite trend with the lowest concentrations near the bottom of the chimney and an increase with height. We detected an anti-correlation between the two components in the chimney deposits, confirming that K is largely scavenged as a deposit within the chimney while Lev is significantly emitted to the ambient air. We propose that, using K/Lev mass ratios, the relative contributions of open fires and domestic wood burning to ambient aerosols can be evaluated.
Permanent Link: https://hdl.handle.net/11104/0340745