Bekö, Gabriel

Bloom, Erica Bloom

Langer, Sarka

The purpose of this study was to evaluate the indoor air quality (IAQ) in newly built low energy houses. Measurements were performed in 22 passive houses and 21 conventional buildings during 2012-2013 and 2013-2014 heating seasons. The measured parameters were temperature, relative humidity, concentration of CO2, NO2, formaldehyde, volatile organic compounds, and live microbiological flora. Air exchange rates (AER) were determined from the concentration-time profiles of CO2. The median AER was slightly higher in the passive houses than in conventional buildings (0.66 h-1 vs. 0.60 h-1). The median concentrations in passive houses and conventional buildings were 9.7 and 11 μg/m3, respectively, for NO2, 12 and 16 μg/m3 for formaldehyde, and 230 and 145 μg/m3 for TVOC. The indoor microbiological flora did not differ, with a few exceptions, from outdoors. The IAQ in the passive buildings was judged to be relatively good with regard to the parameters measured in this study

Online Research Database In Technology

Indoor environment in Swedish passive houses - DTU Orbit (08/11/2017) Indoor environment in Swedish passive housesThe purpose of this study was to evaluate the indoor air quality (IAQ) in newly built low energy houses. Measurementswere performed in 22 passive houses and 21 conventional buildings during 2012-2013 and 2013-2014 heating seasons.The measured parameters were temperature, relative humidity, concentration of CO2, NO2, formaldehyde, volatile organiccompounds, and live microbiological flora. Air exchange rates (AER) were determined from the concentration-time profilesof CO2. The median AER was slightly higher in the passive houses than in conventional buildings (0.66 h-1 vs. 0.60 h-1).The median concentrations in passive houses and conventional buildings were 9.7 and 11 μg/m3, respectively, for NO2,12 and 16 μg/m3 for formaldehyde, and 230 and 145 μg/m3 for TVOC. The indoor microbiological flora did not differ, witha few exceptions, from outdoors. The IAQ in the passive buildings was judged to be relatively good with regard to theparameters measured in this study. General informationState: PublishedOrganisations: Department of Civil Engineering, Section for Indoor Climate and Building Physics, Swedish EnvironmentalResearch InstituteAuthors: Bekö, G. (Intern), Langer, S. (Ekstern), Bloom, E. B. (Ekstern)Pages: 459-465Publication date: 2014 Host publication informationTitle of host publication: Proceedings of Indoor Air 2014Publisher: International Society of Indoor Air Quality and ClimateISBN (Print): 978-1-63439-731-5BFI conference series: International Conference on Indoor Air Quality and Climate (5010063)Main Research Area: Technical/natural sciencesConference: 13th International Conference on Indoor Air Quality and Climate, Hong Kong, Hong Kong, 07/07/2014 -07/07/2014Electronic versions: Langer_2014_IA_Hong_Kong_HP0380_Swedish_passive_houses.pdf Publication: Research - peer-review › Article in proceedings – Annual report year: 2015 

Indoor environment in Swedish passive houses

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Indoor environment in Swedish passive houses

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