Formation and emission of hydrogen chloride in indoor air

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dc.contributor.authorDawe, Kathryn E R
dc.contributor.authorFurlani, Teles C
dc.contributor.authorKowal, Shawn F
dc.contributor.authorKahan, Tara F
dc.contributor.authorVandenBoer, Trevor C
dc.contributor.authorYoung, Cora J
dc.date.accessioned2022-01-25T14:41:10Z
dc.date.available2022-01-25T14:41:10Z
dc.date.issued2018-10-04
dc.description.abstractTo improve our understanding of chlorine chemistry indoors, reactive chlorine species such as hydrogen chloride (HCl) must be analyzed using fast time-response measurement techniques. Although well studied outdoors, sources of HCl indoors are unknown. In this study, mixing ratios of gaseous HCl were measured at 0.5 Hz in the indoor environment using a cavity ring-down spectroscopy (CRDS) instrument. The CRDS measurement rate provides a major advance in observational capability compared to other established techniques. Measurements of HCl were performed during three types of household activities: (1) floor exposure to bleach, (2) chlorinated and non-chlorinated detergent use in household dishwashers, and (3) cooking events. Surface application of bleach resulted in a reproducible increase of 0.1 ppbv in the affected room. Emissions of HCl from automated dishwashers were observed only when chlorinated detergents were used, with additional HCl emitted during the drying cycle. Increased mixing ratios of HCl were also observed during meal preparation on an electric element stovetop. These observations of HCl derived from household activities indicate either direct emission or secondary production of HCl via chlorine atoms is possible. Calculations of photolysis rate constants of chlorine atom precursors provide evidence that photolysis may contribute to indoor HCl levels.en_US
dc.identifier.citationDawe, K.E.R., Furlani, T.C., Kowal, S.F., Kahan, T.F., VandenBoer, T.C., Young, C.J.* 2019 Formation and emission of hydrogen chloride in indoor air. Indoor Air 29:70-78, doi:10.1111/ina.12509.en_US
dc.identifier.uri10.1111/ina.12509en_US
dc.identifier.urihttp://hdl.handle.net/10315/38944
dc.language.isoenen_US
dc.publisherWileyen_US
dc.rightsThis is the peer reviewed version of the following article: Dawe, K.E.R., Furlani, T.C., Kowal, S.F., Kahan, T.F., VandenBoer, T.C., Young, C.J. 2019 Formation and emission of hydrogen chloride in indoor air. Indoor Air 29:70-78, doi:10.1111/ina.12509, which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/ina.12509. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.articlehttps://onlinelibrary.wiley.com/doi/10.1111/ina.12509en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectcavity ring-down spectroscopyen_US
dc.subjectreal-time measurementsen_US
dc.subjectreactive chlorineen_US
dc.subjectbleachen_US
dc.subjectcookingen_US
dc.subjecthydrochloric aciden_US
dc.titleFormation and emission of hydrogen chloride in indoor airen_US
dc.typeArticleen_US

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