TY - GEN
T1 - Impact of indoor surface mass accretion on heterogeneous ozone chemistry
AU - Gall, Elliott T.
AU - Rim, Donghyun
AU - Christopher-Allison, Elena
N1 - Publisher Copyright:
© 2018 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Flux of ozone (O3) to indoor surfaces is a function of airflow and surface O3 reactivity. In addition to material composition, surface reactivity is affected by mass accretion due to particles and semi-volatile organic compounds adsorbed to surfaces. We investigate the impact of mass accretion on O3 reactivity using glass surfaces as a test material. Initially clean, inert glass surfaces were deployed to field sites for 0-60 days and collected weekly. Average mass accretion rates were 18.5 mg/(m2 d) and 10.6 mg/(m2 d) in a naturally ventilated (NV) and mechanically ventilated (MV) space, respectively. Reaction probabilities generally increased with time deployed. Regression analysis shows accreted mass removed 4.3 nmol O3/mg and 2.4 nmol O3/mg for the NV and MV space, respectively. A study of volatile organic byproducts formed from O3-accreted mass reactions is currently underway.
AB - Flux of ozone (O3) to indoor surfaces is a function of airflow and surface O3 reactivity. In addition to material composition, surface reactivity is affected by mass accretion due to particles and semi-volatile organic compounds adsorbed to surfaces. We investigate the impact of mass accretion on O3 reactivity using glass surfaces as a test material. Initially clean, inert glass surfaces were deployed to field sites for 0-60 days and collected weekly. Average mass accretion rates were 18.5 mg/(m2 d) and 10.6 mg/(m2 d) in a naturally ventilated (NV) and mechanically ventilated (MV) space, respectively. Reaction probabilities generally increased with time deployed. Regression analysis shows accreted mass removed 4.3 nmol O3/mg and 2.4 nmol O3/mg for the NV and MV space, respectively. A study of volatile organic byproducts formed from O3-accreted mass reactions is currently underway.
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M3 - Conference contribution
AN - SCOPUS:85105653902
T3 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
BT - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
PB - International Society of Indoor Air Quality and Climate
T2 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
Y2 - 22 July 2018 through 27 July 2018
ER -