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title Indoor air quality during sleep under different ventilation patterns
authors Canha, N; Lage, J; Candeias, S; Alves, C; Almeida, SM
author full name Canha, Nuno; Lage, Joana; Candeias, Susana; Alves, Celia; Almeida, Susana Marta
title Indoor air quality during sleep under different ventilation patterns
nationality internacional
language English
document type Article
author keywords Indoor air quality; Sleep; Exposure; Indoor pollutants; Ventilation
abstract Sleep plays a crucial role in the human welfare. This preliminary study aimed to characterise the indoor air quality (IAQ) during sleep, which has been scarcely studied, to better understand the occupant's exposure. Comfort parameters along with indoor air pollutants were assessed in one bedroom during the sleeping period of the occupant. Four scenarios of natural ventilation in the bedroom were studied regarding IAQ. The ventilation setting with door and window closed (CDCW) promoted the lowest air change rate (0.67 +/- 0.28 h(-1)) and the highest levels of carbon dioxide (CO2), carbon monoxide (CO) and volatile organic compounds (VOCs). Irrespective of ventilation condition, particulate matter levels (PM10, PM2.5) were always high, although maximum values were recorded under CDCW. The simultaneous opening of door and window supplied the highest air change rate (4.85 +/- 0.57 h(-1)). Several pollutants were found to be in concentrations above the established Portuguese guideline for assuring IAQ, namely VOCs, formaldehyde and PM2.5, in specific ventilation settings. (C) 2017 Turkish National Committee for Air Pollution Research and Control. Production and hosting by Elsevier B.V. All rights reserved.
author address [Canha, Nuno; Lage, Joana; Candeias, Susana; Almeida, Susana Marta] Univ Lisbon, Inst Super Tecn, Ctr Ciencias & Tecnol Nucl, Estr Nacl 10,Km 139-7, P-2695066 Bobadela, Lrs, Portugal; [Canha, Nuno; Alves, Celia] Univ Aveiro, Dept Environm & Planning, CESAM Ctr Environm & Marine Studies, P-3810193 Aveiro, Portugal; [Candeias, Susana] Univ Nova Lisboa, Fac Ciencias & Tecnol, Lisbon, Portugal
reprint address Canha, N (reprint author), Univ Lisbon, Inst Super Tecn, Ctr Ciencias & Tecnol Nucl, Estr Nacl 10,Km 139-7, P-2695066 Bobadela, Lrs, Portugal.
e-mail address nunocanha@ctn.tecnico.ulisboa.pt
researcherid number Almeida, Susana/B-5089-2012; Canha, Nuno/C-1026-2012; Alves, Celia/E-7583-2013
orcid number Almeida, Susana/0000-0002-8506-6679; Canha, Nuno/0000-0002-0856-8448; Alves, Celia/0000-0003-3231-3186; Lage, Joana/0000-0002-0189-5438
funding agency and grant number Portuguese Science Foundation (FCT, Portugal) [SFRH/BPD/102944/2014]; FCT [IF/01078/2013]; C2TN/IST [UID/Multi/04349/2013]; CESAM [UID/AMB/50017/2013]
funding text N. Canha acknowledges the Postdoc grant SFRH/BPD/102944/2014 from the Portuguese Science Foundation (FCT, Portugal). S.M. Almeida is also indebted to FCT for funding her contract (IF/01078/2013). The FCT support is also gratefully acknowledged by C2TN/IST authors (through the UID/Multi/04349/2013 project) and by CESAM authors (through the CESAM's strategic programme UID/AMB/50017/2013). The authors thank Otto Hanninen for his assistance in the calculation of ACHs.
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cited reference count 61
times cited 1
total times cited count (wos, bci, and cscd) 1
publisher city BUCA
issn 1309-1042
29-character source abbreviation ATMOS POLLUT RES
iso source abbreviation Atmos. Pollut. Res.
publication date NOV
year published 2017
volume 8
issue 6
beginning page 1132
ending page 1142
digital object identifier (doi) 10.1016/j.apr.2017.05.004
subject category 11
document delivery number Environmental Sciences
unique article identifier Environmental Sciences & Ecology
link https://doi.org/10.1016/j.apr.2017.05.004
CESAM authors