TY - GEN
T1 - Real-time molecular characterization of air pollutants in a Hong Kong residence
T2 - Healthy Buildings 2023: Asia and Pacific Rim
AU - Lyu, Xiaopu
AU - Huo, Yunxi
AU - Yang, Jin
AU - Yao, Dawen
AU - Li, Kaimin
AU - Lu, Haoxian
AU - Zeren, Yangzong
AU - Guo, Hai
N1 - Publisher Copyright:
© 2023 Healthy Buildings 2023: Asia and Pacific Rim. All rights reserved.
PY - 2023
Y1 - 2023
N2 - Due to the high health risks associated with indoor air pollutants and long-term exposure, indoor air quality has received increasing attention. We put emphasis on the molecular composition, source emissions, and chemical aging of air pollutants in a residence with designed activities mimicking ordinary Hong Kong homes. The indoor-to-outdoor ratios were higher than 1 for most of the primary air pollutants, due to emissions of indoor activities and indoor backgrounds (especially for aldehydes). Painting ranked first in aldehyde emissions, which also caused great enhancement of aromatics. Incense burning had the highest emissions of particle-phase organics, with vanillic acid and syringic acid as markers. We showed clear evidence of chemical aging of cooking emissions, giving a hint of indoor heterogeneous chemistry. This study highlights the value of organic molecules measured at high time resolutions in enhancing our knowledge on indoor air quality.
AB - Due to the high health risks associated with indoor air pollutants and long-term exposure, indoor air quality has received increasing attention. We put emphasis on the molecular composition, source emissions, and chemical aging of air pollutants in a residence with designed activities mimicking ordinary Hong Kong homes. The indoor-to-outdoor ratios were higher than 1 for most of the primary air pollutants, due to emissions of indoor activities and indoor backgrounds (especially for aldehydes). Painting ranked first in aldehyde emissions, which also caused great enhancement of aromatics. Incense burning had the highest emissions of particle-phase organics, with vanillic acid and syringic acid as markers. We showed clear evidence of chemical aging of cooking emissions, giving a hint of indoor heterogeneous chemistry. This study highlights the value of organic molecules measured at high time resolutions in enhancing our knowledge on indoor air quality.
KW - Indoor air quality
KW - Indoor chemistry
KW - Organic aerosol
KW - Particulate matters
KW - Volatile organic compounds
UR - http://www.scopus.com/inward/record.url?scp=85189941528&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:85189941528
T3 - Healthy Buildings 2023: Asia and Pacific Rim
BT - Healthy Buildings 2023
PB - International Society of Indoor Air Quality and Climate
Y2 - 17 July 2023 through 19 July 2023
ER -
