Indoor air quality in South East Queensland dwellings during 2019-2020 bushfires

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Author(s)
Zhang, Fan
Stewart, Rodney
Year published
2020
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Australia has experienced the longest bushfire season in 2019–2020 summertime. This study investigates the indoor air quality, represented by indoor air temperature, relative humidity, PM2.5 concentration and CO2 concentration, in 16 Brisbane and 5 Gold Coast residential buildings from Dec 2019 to Feb 2020. Results demonstrated that in general, IAQ conditions were not seriously affected by the bushfire, except a few days in December 2019. The indoor and outdoor PM2.5 concentrations were very close during normal building ventilation conditions; however, the indoor to outdoor ratio can range widely between 0.21 and 7.50 during ...
View more >Australia has experienced the longest bushfire season in 2019–2020 summertime. This study investigates the indoor air quality, represented by indoor air temperature, relative humidity, PM2.5 concentration and CO2 concentration, in 16 Brisbane and 5 Gold Coast residential buildings from Dec 2019 to Feb 2020. Results demonstrated that in general, IAQ conditions were not seriously affected by the bushfire, except a few days in December 2019. The indoor and outdoor PM2.5 concentrations were very close during normal building ventilation conditions; however, the indoor to outdoor ratio can range widely between 0.21 and 7.50 during bushfire days under minimal ventilation conditions. Staying indoors with windows and doors closed might not always bring benefits during bushfire events, as internally generated fine particulates might exacerbate the level of pollution indoors.
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View more >Australia has experienced the longest bushfire season in 2019–2020 summertime. This study investigates the indoor air quality, represented by indoor air temperature, relative humidity, PM2.5 concentration and CO2 concentration, in 16 Brisbane and 5 Gold Coast residential buildings from Dec 2019 to Feb 2020. Results demonstrated that in general, IAQ conditions were not seriously affected by the bushfire, except a few days in December 2019. The indoor and outdoor PM2.5 concentrations were very close during normal building ventilation conditions; however, the indoor to outdoor ratio can range widely between 0.21 and 7.50 during bushfire days under minimal ventilation conditions. Staying indoors with windows and doors closed might not always bring benefits during bushfire events, as internally generated fine particulates might exacerbate the level of pollution indoors.
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Conference Title
The 54th International Conference of the Architectural Science Association (ANZAScA) 2020
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© 2020 The Architectural Science Association. The attached file is reproduced here in accordance with the copyright policy of the publisher. For information about this conference please refer to the conference’s website or contact the author(s).
Subject
Building Science and Techniques
Architectural Science and Technology (incl. Acoustics, Lighting, Structure and Ecologically Sustainable Design)