Modelling Study of Interactions of Ozone and Hydrogen Peroxide on Indoor Surfaces

TY - CONF

T1 - Modelling Study of Interactions of Ozone and Hydrogen Peroxide on Indoor Surfaces

AU - Carter, Toby J.

AU - Poppendieck, Dustin G.

AU - Shaw, David

AU - Carslaw, Nicola

N1 - Publisher Copyright: © 2022 17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022. All rights reserved.

PY - 2022/6/16

Y1 - 2022/6/16

N2 - In recent decades, the role of the indoor microenvironment in our exposure to air pollutants has become clearer. Indoor air pollutants are emitted from common household items, including building materials and furnishings, and can then undergo chemical reactions to form a myriad of secondary pollutants. The purpose of this study is to use the indoor chemical box model, INCHEM-Py, to quantify the impact that ozone and hydrogen peroxide deposition onto internal surfaces has on indoor air chemistry. The results show that following the uptake of ozone onto indoor surfaces, hydroxyl radical concentrations are ~40% lower than following hydrogen peroxide deposition onto the same surfaces. Total volatile organic compounds mixing ratios increased by 13.5 ppbv following ozone deposition, but were negligible for hydrogen peroxide deposition. Surface deposition, particularly for ozone, has the ability to significantly perturb indoor air chemistry.

AB - In recent decades, the role of the indoor microenvironment in our exposure to air pollutants has become clearer. Indoor air pollutants are emitted from common household items, including building materials and furnishings, and can then undergo chemical reactions to form a myriad of secondary pollutants. The purpose of this study is to use the indoor chemical box model, INCHEM-Py, to quantify the impact that ozone and hydrogen peroxide deposition onto internal surfaces has on indoor air chemistry. The results show that following the uptake of ozone onto indoor surfaces, hydroxyl radical concentrations are ~40% lower than following hydrogen peroxide deposition onto the same surfaces. Total volatile organic compounds mixing ratios increased by 13.5 ppbv following ozone deposition, but were negligible for hydrogen peroxide deposition. Surface deposition, particularly for ozone, has the ability to significantly perturb indoor air chemistry.

KW - deposition

KW - INCHEM-Py

KW - indoor air chemistry

KW - surface interactions

UR - http://www.scopus.com/inward/record.url?scp=85159177779&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85159177779

T2 - 17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022

Y2 - 12 June 2022 through 16 June 2022

ER -