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Impact of the 2019/2020 Australian Megafires on Air Quality and Health by Ailish M. Graham; Kirsty J. Pringle; Richard J. Pope; Stephen R. Arnold; Luke A. Conibear; Helen Burns; Richard Rigby; Nicolás Borchers‐Arriagada; Edward W. Butt; Laura Kiely; Carly Reddington; Dominick V. Spracklen; Matthew T. Woodhouse; Christoph Knote; James B. McQuaid is a Environmental Science article available to read on EtoBox.

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## Abstract The Australian 2019/2020 bushfires were unprecedented in their extent and intensity, causing a catastrophic loss of habitat, human and animal life across eastern‐Australia. We use a regional air quality model to assess the impact of the bushfires on particulate matter with a diameter less than 2.5 μm (PM~2.5~) concentrations and the associated health impact from short‐term population exposure to bushfire PM~2.5~. The mean population Air Quality Index (AQI) exposure between September and February in the fires and no fires simulations indicates an additional ∼437,000 people were exposed to “Poor” or worse AQI levels due to the fires. The AQ impact was concentrated in the cities of Sydney, Newcastle‐Maitland, Canberra‐Queanbeyan and Melbourne. Between October and February 171 (95% CI: 66–291) deaths were brought forward due to short‐term exposure to bushfire PM~2.5~. The health burden was largest in New South Wales (NSW) (109 (95% CI: 41–176) deaths brought forward), Queensland (15 (95% CI: 5–24)), and Victoria (35 (95% CI: 13–56)). This represents 38%, 13% and 30% of the total deaths brought forward by short‐term exposure to all PM~2.5~. At a city‐level 65 (95% CI: 24–105

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Author

Ailish M. Graham; Kirsty J. Pringle; Richard J. Pope; Stephen R. Arnold; Luke A. Conibear; Helen Burns; Richard Rigby; Nicolás Borchers‐Arriagada; Edward W. Butt; Laura Kiely; Carly Reddington; Dominick V. Spracklen; Matthew T. Woodhouse; Christoph Knote; James B. McQuaid

Publisher

American Geophysical Union (AGU)

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)