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Personal and demographic factors and change of subjective indoor air quality reported by school children in relation to exposure at Swedish schools: A 2-year longitudinal study
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Occupational and Environmental Medicine.
2015 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 508, 288-296 p.Article in journal (Refereed) Published
Abstract [en]

This paper studies changes in subjective indoor air quality (SIAQ) among school children and relates these data to repeated exposure measurements during a two-year follow-up period. Data on SIAQand demographic information were gathered by a questionnaire sent to 1476 primary and secondary school pupils in 39 randomly selected schools at baseline and after two years (follow-up). Exposure measurements were applied after questionnaire data were collected at baseline and follow-up in approximately 100 classrooms. The arithmetic mean values for baseline and follow-up were: for indoor air temperature 23.6 degrees C and 21.8 degrees C and for outdoor air flow rate 5.4 L/s and 7.9 L/s. Older children, those with atopy at baseline, and those in larger schools reported impaired SIAQ during follow-up. Installation of new ventilation systems, higher personal air flow rate and air exchange rate, and better illumination were associated with improved SIAQ, Higher CO2 levels were associated with impaired SIAQ, In conclusion, sufficient ventilation and illumination in classrooms are essential for the perception of good indoor air quality. (C) 2014 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2015. Vol. 508, 288-296 p.
Keyword [en]
School environment, Ventilation, Volatile organic compounds (VOCs), Subjective indoor air quality, Building dampness, Carbon dioxide (CO2)
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:uu:diva-247561DOI: 10.1016/j.scitotenv.2014.12.001ISI: 000349195100033PubMedID: 25486639OAI: oai:DiVA.org:uu-247561DiVA: diva2:796990
Available from: 2015-03-20 Created: 2015-03-20 Last updated: 2017-12-04Bibliographically approved

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Wang, JuanSmedje, GretaNordquist, TobiasNorback, Dan

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