Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents

Indoor air quality (IAQ) can greatly affect health in people spending much time indoors. However, the influence of IAQ on personal exposure to chemical compounds in Japan remains poorly investigated. Hence, this study aimed to clarify this influence thoroughly within one apartment. We surveyed the c...

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Autores principales:	Hironari Sakamoto, Shigehisa Uchiyama, Tomohiko Isobe, Naoki Kunugita, Hironao Ogura, Shoji F. Nakayama
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	personal exposure indoor air quality spatial variation diffusive sampler Medicine R
Acceso en línea:	https://doaj.org/article/ab9b97c8a40a4841b36777a96717dceb
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spelling	oai:doaj.org-article:ab9b97c8a40a4841b36777a96717dceb2021-11-11T16:37:57ZSpatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents10.3390/ijerph1821115111660-46011661-7827https://doaj.org/article/ab9b97c8a40a4841b36777a96717dceb2021-11-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/21/11511https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601Indoor air quality (IAQ) can greatly affect health in people spending much time indoors. However, the influence of IAQ on personal exposure to chemical compounds in Japan remains poorly investigated. Hence, this study aimed to clarify this influence thoroughly within one apartment. We surveyed the concentrations of 61 chemical compounds in the air in nine different spaces within an apartment unit, as well as the personal exposure of two residents in Japan. Using three kinds of diffusive samplers, this study was conducted continuously for 7 days in summer and winter. Health risks were evaluated by calculating the margin of exposure (MOE) using the measured concentrations. Some chemical concentrations showed large spatial variations and the personal exposure concentrations of these compounds also differed among residents. According to the calculated MOE, the chemicals with the highest health risk were acrolein, <i>p</i>-dichlorobenzene, and acetaldehyde in summer and acrolein, nitrogen dioxide, formic acid, <i>p</i>-dichlorobenzene, and benzene in winter. The IAQ of the house could be divided in two, and the IAQ in the space where residents spent much time (i.e., bedroom) highly affected each of the residents’ exposure. Investigating chemical concentrations in multiple spaces (including bedroom and living room) is necessary to understand the effect of IAQ on personal exposure.Hironari SakamotoShigehisa UchiyamaTomohiko IsobeNaoki KunugitaHironao OguraShoji F. NakayamaMDPI AGarticlepersonal exposureindoor air qualityspatial variationdiffusive samplerMedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 11511, p 11511 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	personal exposure indoor air quality spatial variation diffusive sampler Medicine R
spellingShingle	personal exposure indoor air quality spatial variation diffusive sampler Medicine R Hironari Sakamoto Shigehisa Uchiyama Tomohiko Isobe Naoki Kunugita Hironao Ogura Shoji F. Nakayama Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents
description	Indoor air quality (IAQ) can greatly affect health in people spending much time indoors. However, the influence of IAQ on personal exposure to chemical compounds in Japan remains poorly investigated. Hence, this study aimed to clarify this influence thoroughly within one apartment. We surveyed the concentrations of 61 chemical compounds in the air in nine different spaces within an apartment unit, as well as the personal exposure of two residents in Japan. Using three kinds of diffusive samplers, this study was conducted continuously for 7 days in summer and winter. Health risks were evaluated by calculating the margin of exposure (MOE) using the measured concentrations. Some chemical concentrations showed large spatial variations and the personal exposure concentrations of these compounds also differed among residents. According to the calculated MOE, the chemicals with the highest health risk were acrolein, <i>p</i>-dichlorobenzene, and acetaldehyde in summer and acrolein, nitrogen dioxide, formic acid, <i>p</i>-dichlorobenzene, and benzene in winter. The IAQ of the house could be divided in two, and the IAQ in the space where residents spent much time (i.e., bedroom) highly affected each of the residents’ exposure. Investigating chemical concentrations in multiple spaces (including bedroom and living room) is necessary to understand the effect of IAQ on personal exposure.
format	article
author	Hironari Sakamoto Shigehisa Uchiyama Tomohiko Isobe Naoki Kunugita Hironao Ogura Shoji F. Nakayama
author_facet	Hironari Sakamoto Shigehisa Uchiyama Tomohiko Isobe Naoki Kunugita Hironao Ogura Shoji F. Nakayama
author_sort	Hironari Sakamoto
title	Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents
title_short	Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents
title_full	Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents
title_fullStr	Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents
title_full_unstemmed	Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents
title_sort	spatial variations of indoor air chemicals in an apartment unit and personal exposure of residents
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ab9b97c8a40a4841b36777a96717dceb
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Spatial Variations of Indoor Air Chemicals in an Apartment Unit and Personal Exposure of Residents

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