Can Public Spaces Effectively Be Used as Cleaner Indoor Air Shelters during Extreme Smoke Events?
نویسندگان
چکیده
During extreme air pollution events, such as bushfires, public health agencies often recommend that vulnerable individuals visit a nearby building with central conditioning to reduce their exposure smoke. However, there is limited evidence these “cleaner indoor shelters” or risks. We quantified the impact of shelter” in library Port Macquarie, NSW, Australia when concentrations fine particulate matter (PM2.5) were elevated during local peat fire and bushfires. Specifically, we evaluated quality improvements only use portable high efficiency (HEPA) filter cleaners. measured PM2.5 from August 2019 until February 2020 by deploying pairs low-cost sensors (i) inside main library, (ii) smaller media room (iii) outside (iv) co-located regulatory monitors located town. operated two HEPA cleaners October 2019. infiltration outdoor concentrations, defined fraction concentration penetrates indoors remains suspended, well additional effect on concentrations. The into air-conditioned was 30%, meaning compared outdoors, outdoor-generated reduced 70%. In room, operating, further 17%. A carefully selected could be used cleaner shelter episodes smoke emissions. Further within can achieved operating appropriately sized
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ژورنال
عنوان ژورنال: International Journal of Environmental Research and Public Health
سال: 2021
ISSN: ['1661-7827', '1660-4601']
DOI: https://doi.org/10.3390/ijerph18084085