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

Published

Author(s)

Dustin Poppendieck, Toby J. Carter, David Shaw, Nicola Carslaw

Abstract

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
Proceedings Title
Indoor Air 2022
Volume
297
Conference Dates
June 12-16, 2022
Conference Location
Kuopio, FI

Keywords

indoor air chemistry, surface interactions, INCHEM-Py, deposition

Citation

Poppendieck, D. , Carter, T. , Shaw, D. and Carslaw, N. (2023), Modelling Study of Interactions of Ozone and Hydrogen Peroxide on Indoor Surfaces, Indoor Air 2022 , Kuopio, FI, [online], https://doi.org/10.1016/j.atmosenv.2023.119598, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934284 (Accessed April 17, 2024)
Created March 15, 2023, Updated March 8, 2024