Abstract

The health effects associated with exposure to ozone range from respiratory irritation to increased mortality. in this paper, we explore the use of three green building materials and an activated carbon (AC) mat that remove ozone from indoor air. We studied the effects of long-term exposure of these materials to real environments on ozone removal capability and pre- and post-ozonation emissions. a field study was completed over a 6-month period, and laboratory testing was intermittently conducted on material samples retrieved from the field. the results show sustained ozone removal for all materials except recycled carpet, with greatest ozone deposition velocity for AC mat (2.5-3.8m/h) and perlite-Based ceiling tile (2.2-3.2m/h). Carbonyl emission rates were low for AC across all field sites. Painted gypsum wallboard and perlite-Based ceiling tile had similar overall emission rates over the 6-month period, while carpet had large initial emission rates of undesirable by-products that decayed rapidly but remained high compared with other materials. This study confirms that AC mats and perlite-Based ceiling tile are viable surfaces for inclusion in buildings to remove ozone without generating undesirable by-products. Practical implications: The use of passive removal materials for ozone control could decrease the need for, or even render unnecessary, active but energy consuming control solutions. in buildings where ozone should be controlled (high outdoor ozone concentrations, sensitive populations), materials specifically designed or selected for removing ozone could be implemented, as long as ozone removal is not associated with large emissions of harmful by-products. © 2011 John Wiley & Sons A/S.

Department(s)

Civil, Architectural and Environmental Engineering

Publication Status

Full Access

Keywords and Phrases

Activated carbon; Carbonyls; Deposition velocity; Emissions; Field studies; Green materials

International Standard Serial Number (ISSN)

1600-0668; 0905-6947

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Wiley, All rights reserved.

Publication Date

01 Jan 2012

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