Chemical Transformations of Infiltrated Wildfire Smoke on Indoor-Relevant Surfaces DOI Creative Commons
Cholaphan Deeleepojananan, Shubhrangshu Pandit, Jienan Li

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Indoor environments are affected during wildfire events due to the infiltration of smoke. In this study, fate smoke, including gases and particles, on indoor surfaces was investigated through laboratory field experiments. Fresh smoke generated from burning ponderosa pine woodchips, which produced well-established biomass tracers, such as levoglucosan, 3-methyl-1,2,3-butanetricarboxylic acid (MBTCA), 5-hydroxymethylfurfural. The interactions particles were observed different indoor-relevant building material surfaces, glass (windows), rutile (paint self-cleaning surfaces), kaolinite (cement proxy clay). However, relative abundance surface-bound species varied depending nature these suggesting that preferential adsorption volatile particle deposition onto relevant play a key role in chemistry air quality following intrusion. Kaolinite particular, exhibited formation surface-initiated products fresh exposure. Furthermore, larger surface ozone-aged exposure, potentially resulting interaction secondary organic aerosol formed ozonolysis. Overall, study demonstrates interact uniquely with compounds, leading distinct chemical transformations.

Language: Английский

Chemical Transformations of Infiltrated Wildfire Smoke on Indoor-Relevant Surfaces DOI Creative Commons
Cholaphan Deeleepojananan, Shubhrangshu Pandit, Jienan Li

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Indoor environments are affected during wildfire events due to the infiltration of smoke. In this study, fate smoke, including gases and particles, on indoor surfaces was investigated through laboratory field experiments. Fresh smoke generated from burning ponderosa pine woodchips, which produced well-established biomass tracers, such as levoglucosan, 3-methyl-1,2,3-butanetricarboxylic acid (MBTCA), 5-hydroxymethylfurfural. The interactions particles were observed different indoor-relevant building material surfaces, glass (windows), rutile (paint self-cleaning surfaces), kaolinite (cement proxy clay). However, relative abundance surface-bound species varied depending nature these suggesting that preferential adsorption volatile particle deposition onto relevant play a key role in chemistry air quality following intrusion. Kaolinite particular, exhibited formation surface-initiated products fresh exposure. Furthermore, larger surface ozone-aged exposure, potentially resulting interaction secondary organic aerosol formed ozonolysis. Overall, study demonstrates interact uniquely with compounds, leading distinct chemical transformations.

Language: Английский

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