The impact of second-hand smoke on nitrogen oxides concentrations in a small interior

Abstract Nitrogen oxides (NOx), especially nitrogen dioxide (NO2), are among the most hazardous forms of air pollution. Tobacco smoke is a main indoor source of NOx, but little information is available about their concentrations in second-hand smoke (SHS), particularly in small indoors. This study p...

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Autores principales:	Markus Braun, Doris Klingelhöfer, Ruth Müller, David A. Groneberg
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dde6138e0ea54c4bbb3eeb150dd278c0
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spelling	oai:doaj.org-article:dde6138e0ea54c4bbb3eeb150dd278c02021-12-02T17:51:21ZThe impact of second-hand smoke on nitrogen oxides concentrations in a small interior10.1038/s41598-021-90994-x2045-2322https://doaj.org/article/dde6138e0ea54c4bbb3eeb150dd278c02021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90994-xhttps://doaj.org/toc/2045-2322Abstract Nitrogen oxides (NOx), especially nitrogen dioxide (NO2), are among the most hazardous forms of air pollution. Tobacco smoke is a main indoor source of NOx, but little information is available about their concentrations in second-hand smoke (SHS), particularly in small indoors. This study presents data of NOx and its main components nitric oxide (NO) and NO2 in SHS emitted by ten different cigarette brands measured in a closed test chamber with a volume of 2.88 m3, similar to the volume of vehicle cabins. The results show substantial increases in NOx concentrations when smoking only one cigarette. The NO2 mean concentrations ranged between 105 and 293 µg/m3, the NO2 peak concentrations between 126 and 357 µg/m3. That means the one-hour mean guideline of 200 µg/m3 for NO2 of the World Health Organization was exceeded up to 47%, respectively 79%. The measured NO2 values show positive correlations with the values for tar, nicotine, and carbon monoxide stated by the cigarette manufacturers. This study provides NO2 concentrations in SHS at health hazard levels. These data give rise to the necessity of health authorities’ measures to inform about and caution against NOx exposure by smoking in indoor rooms.Markus BraunDoris KlingelhöferRuth MüllerDavid A. GronebergNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Markus Braun Doris Klingelhöfer Ruth Müller David A. Groneberg The impact of second-hand smoke on nitrogen oxides concentrations in a small interior
description	Abstract Nitrogen oxides (NOx), especially nitrogen dioxide (NO2), are among the most hazardous forms of air pollution. Tobacco smoke is a main indoor source of NOx, but little information is available about their concentrations in second-hand smoke (SHS), particularly in small indoors. This study presents data of NOx and its main components nitric oxide (NO) and NO2 in SHS emitted by ten different cigarette brands measured in a closed test chamber with a volume of 2.88 m3, similar to the volume of vehicle cabins. The results show substantial increases in NOx concentrations when smoking only one cigarette. The NO2 mean concentrations ranged between 105 and 293 µg/m3, the NO2 peak concentrations between 126 and 357 µg/m3. That means the one-hour mean guideline of 200 µg/m3 for NO2 of the World Health Organization was exceeded up to 47%, respectively 79%. The measured NO2 values show positive correlations with the values for tar, nicotine, and carbon monoxide stated by the cigarette manufacturers. This study provides NO2 concentrations in SHS at health hazard levels. These data give rise to the necessity of health authorities’ measures to inform about and caution against NOx exposure by smoking in indoor rooms.
format	article
author	Markus Braun Doris Klingelhöfer Ruth Müller David A. Groneberg
author_facet	Markus Braun Doris Klingelhöfer Ruth Müller David A. Groneberg
author_sort	Markus Braun
title	The impact of second-hand smoke on nitrogen oxides concentrations in a small interior
title_short	The impact of second-hand smoke on nitrogen oxides concentrations in a small interior
title_full	The impact of second-hand smoke on nitrogen oxides concentrations in a small interior
title_fullStr	The impact of second-hand smoke on nitrogen oxides concentrations in a small interior
title_full_unstemmed	The impact of second-hand smoke on nitrogen oxides concentrations in a small interior
title_sort	impact of second-hand smoke on nitrogen oxides concentrations in a small interior
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dde6138e0ea54c4bbb3eeb150dd278c0
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The impact of second-hand smoke on nitrogen oxides concentrations in a small interior

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