Mortality Burden Attributable to Exceptional PM Air Pollution Events in Australian Cities: A Health Impact Assessment

Overview

Journal Heliyon

Specialty Social Sciences

Date 2024 Feb 1

PMID 38298653

Authors

Lucas Hertzog

Geoffrey G Morgan

Cassandra Yuen

Karthik Gopi

Gavin F Pereira

Fay H Johnston

Martin Cope

Timothy B Chaston

Aditya Vyas

Sotiris Vardoulakis

Ivan C Hanigan

Affiliations

Soon will be listed here.

Abstract

Background: People living in Australian cities face increased mortality risks from exposure to extreme air pollution events due to bushfires and dust storms. However, the burden of mortality attributable to exceptional PM levels has not been well characterised. We assessed the burden of mortality due to PM pollution events in Australian capital cities between 2001 and 2020.

Methods: For this health impact assessment, we obtained data on daily counts of deaths for all non-accidental causes and ages from the Australian National Vital Statistics Register. Daily concentrations of PM were estimated at a 5 km grid cell, using a Random Forest statistical model of data from air pollution monitoring sites combined with a range of satellite and land use-related data. We calculated the exceptional PM levels for each extreme pollution exposure day using the deviation from a seasonal and trend loess decomposition model. The burden of mortality was examined using a relative risk concentration-response function suggested in the literature.

Findings: Over the 20-year study period, we estimated 1454 (95 % CI 987, 1920) deaths in the major Australian cities attributable to exceptional PM exposure levels. The mortality burden due to PM exposure on extreme pollution days was considerable. Variations were observed across Australia. Despite relatively low daily PM levels compared to global averages, all Australian cities have extreme pollution exposure days, with PM concentrations exceeding the World Health Organisation Air Quality Guideline standard for 24-h exposure. Our analysis results indicate that nearly one-third of deaths from extreme air pollution exposure can be prevented with a 5 % reduction in PM levels on days with exceptional pollution.

Interpretation: Exposure to exceptional PM events was associated with an increased mortality burden in Australia's cities. Policies and coordinated action are needed to manage the health risks of extreme air pollution events due to bushfires and dust storms under climate change.

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PMID: 39641012 PMC: 11617722. DOI: 10.1016/j.heliyon.2024.e38341.

References

Hanigan I, Broome R, Chaston T, Cope M, Dennekamp M, Heyworth J . Avoidable Mortality Attributable to Anthropogenic Fine Particulate Matter (PM) in Australia. Int J Environ Res Public Health. 2021; 18(1). PMC: 7795118. DOI: 10.3390/ijerph18010254. View

Broome R, Powell J, Cope M, Morgan G . The mortality effect of PM sources in the Greater Metropolitan Region of Sydney, Australia. Environ Int. 2020; 137:105429. DOI: 10.1016/j.envint.2019.105429. View

. Clean air for a sustainable world. Nat Commun. 2021; 12(1):5824. PMC: 8490423. DOI: 10.1038/s41467-021-25885-w. View

Hanley J . A heuristic approach to the formulas for population attributable fraction. J Epidemiol Community Health. 2001; 55(7):508-14. PMC: 1731931. DOI: 10.1136/jech.55.7.508. View

Fuller R, Landrigan P, Balakrishnan K, Bathan G, Bose-OReilly S, Brauer M . Pollution and health: a progress update. Lancet Planet Health. 2022; 6(6):e535-e547. DOI: 10.1016/S2542-5196(22)00090-0. View

Orellano P, Reynoso J, Quaranta N, Bardach A, Ciapponi A . Short-term exposure to particulate matter (PM and PM), nitrogen dioxide (NO), and ozone (O) and all-cause and cause-specific mortality: Systematic review and meta-analysis. Environ Int. 2020; 142:105876. DOI: 10.1016/j.envint.2020.105876. View

Janssen N, Fischer P, Marra M, Ameling C, Cassee F . Short-term effects of PM2.5, PM10 and PM2.5-10 on daily mortality in The Netherlands. Sci Total Environ. 2013; 463-464:20-6. DOI: 10.1016/j.scitotenv.2013.05.062. View

Borchers-Arriagada N, Palmer A, Bowman D, Williamson G, Johnston F . Health Impacts of Ambient Biomass Smoke in Tasmania, Australia. Int J Environ Res Public Health. 2020; 17(9). PMC: 7246513. DOI: 10.3390/ijerph17093264. View

Steenland K, Armstrong B . An overview of methods for calculating the burden of disease due to specific risk factors. Epidemiology. 2006; 17(5):512-9. DOI: 10.1097/01.ede.0000229155.05644.43. View

10.

Horsley J, Broome R, Johnston F, Cope M, Morgan G . Health burden associated with fire smoke in Sydney, 2001-2013. Med J Aust. 2018; 208(7):309-310. DOI: 10.5694/mja18.00032. View

11.

Yu P, Xu R, Coelho M, Saldiva P, Li S, Zhao Q . The impacts of long-term exposure to PM on cancer hospitalizations in Brazil. Environ Int. 2021; 154:106671. DOI: 10.1016/j.envint.2021.106671. View

12.

Jegasothy E, Hanigan I, Van Buskirk J, Morgan G, Jalaludin B, Johnston F . Acute health effects of bushfire smoke on mortality in Sydney, Australia. Environ Int. 2022; 171:107684. DOI: 10.1016/j.envint.2022.107684. View

13.

Yu W, Guo Y, Shi L, Li S . The association between long-term exposure to low-level PM2.5 and mortality in the state of Queensland, Australia: A modelling study with the difference-in-differences approach. PLoS Med. 2020; 17(6):e1003141. PMC: 7302440. DOI: 10.1371/journal.pmed.1003141. View

14.

Bowman D, Balch J, Artaxo P, Bond W, Carlson J, Cochrane M . Fire in the Earth system. Science. 2009; 324(5926):481-4. DOI: 10.1126/science.1163886. View

15.

Hanigan I, Rolfe M, Knibbs L, Salimi F, Cowie C, Heyworth J . All-cause mortality and long-term exposure to low level air pollution in the '45 and up study' cohort, Sydney, Australia, 2006-2015. Environ Int. 2019; 126:762-770. DOI: 10.1016/j.envint.2019.02.044. View

16.

Chen G, Guo Y, Yue X, Tong S, Gasparrini A, Bell M . Mortality risk attributable to wildfire-related PM pollution: a global time series study in 749 locations. Lancet Planet Health. 2021; 5(9):e579-e587. DOI: 10.1016/S2542-5196(21)00200-X. View

17.

. Global burden of 87 risk factors in 204 countries and territories, 1990-2019: a systematic analysis for the Global Burden of Disease Study 2019. Lancet. 2020; 396(10258):1223-1249. PMC: 7566194. DOI: 10.1016/S0140-6736(20)30752-2. View

18.

Guo Y, Zeng H, Zheng R, Li S, Barnett A, Zhang S . The association between lung cancer incidence and ambient air pollution in China: A spatiotemporal analysis. Environ Res. 2015; 144(Pt A):60-65. DOI: 10.1016/j.envres.2015.11.004. View

19.

Vardoulakis S, Jalaludin B, Morgan G, Hanigan I, Johnston F . Bushfire smoke: urgent need for a national health protection strategy. Med J Aust. 2020; 212(8):349-353.e1. PMC: 7318141. DOI: 10.5694/mja2.50511. View

20.

Chen J, Hoek G . Long-term exposure to PM and all-cause and cause-specific mortality: A systematic review and meta-analysis. Environ Int. 2020; 143:105974. DOI: 10.1016/j.envint.2020.105974. View