Exposure to fine particulate matter (PM2.5) during landscape fire events and the risk of cardiorespiratory emergency department attendances

A time-series study in Perth, Western Australia

Datos Bibliográficos

ID11173286
AutoresAdeleh Shirangi (0000-0002-4842-5513, Government of Western Australia, autor de correspondencia), Ting Lin (0000-0001-8738-5801, Government of Western Australia), Ivana Ivánová (0000-0001-6836-3463, Curtin University), Ivana Iva′nova, Grace Yun (Government of Western Australia), Grant J Williamson (0000-0002-3469-7550, University of Tasmania), Paula Franklin (0000-0002-9983-1212, The University of Western Australia), Peter Franklin (0009-0001-5380-9132, The University of Western Australia), Le Jian (0000-0002-8909-9320, Government of Western Australia), Rowena Burch (Government of Western Australia), Ashraf Dewan (0000-0001-5594-5464, Curtin University), Bradley Santos (Environmental Prediction Services – Severe Weather, Bureau of Meteorology (WA Office), West Perth, WA, Australia), Nathan Eaton (0000-0001-9479-1365, NGIS, West Perth, WA, Australia), Jianguo Xiao (0000-0001-7673-4914, Government of Western Australia)
Año2022
Volumen76
Número9
Páginas809-818
Fecha de publicación2022-09-01
Peer ReviewedSí
Open AccessNo
TipoARTICLE
RevistaJournal of Epidemiology and Community Health (JOURNAL)
Identificadores de la revistaISSN: 0143-005X • E-ISSN: 1470-2738
EditorialBMJ (PUBLISHER • GB)
DOI10.1136/jech-2021-218229
PMID35853664
OpenAlexW4285797426
IdiomaEN
Citas recibidas1
Referencias citadas36

Background Landscape fires (LFs) are the main source of elevated particulate matter (PM 2.5 ) in Australian cities and towns. This study examined the associations between daily exposure to fine PM 2.5 during LF events and daily emergency department attendances (EDA) for all causes, respiratory and cardiovascular outcomes. Methods Daily PM 2.5 was estimated using a model that included PM 2.5 measurements on the previous day, remotely sensed aerosols and fires, hand-drawn tracing of smoke plumes from satellite images, fire danger ratings and the atmosphere venting index. Daily PM 2.5 was then categorised as high (≥99th percentile), medium (96th–98th percentile) and low (≤95th percentile). Daily EDA for all-cause and cardiorespiratory conditions were obtained from the Western Australian Emergency Department Data Collection. We used population-based cohort time-series multivariate regressions with 95% CIs to assess modelled daily PM 2.5 and EDA associations from 2015 to 2017. We estimated the lag-specific associations and cumulative risk ratios (RR) at lags of 0–3 days, adjusted for sociodemographic factors, weather and time. Results All-cause EDA and overall cardiovascular presentations increased on all lagged days and up to 5% (RR 1.05, 95% CI 1.03 to 1.06) and 7% (RR 1.07, 95% CI 1.01 to 1.12), respectively, at the high level. High-level exposure was also associated with increased acute lower respiratory tract infections at 1 (RR 1.19, 95% CI 1.10 to 1.29) and 3 (RR 1.17, 95% CI 1.10 to 1.23) days lags and transient ischaemic attacks at 1 day (RR 1.25, 95% CI 1.02 to 1.53) and 2 (RR 1.20, 95% CI 1.01 to 1.42) days lag. Conclusions Exposure to PM 2.5 concentrations during LFs was associated with an increased risk of all-cause EDA, overall EDA cardiovascular diseases, acute respiratory tract infections and transient ischaemic attacks

Cardiorespiratory fitness · Emergency department · Environmental health · Particulates · Percentile · Population · Statistics · Air Quality and Health Impacts · Climate Change and Health Impacts · Demography · Internal Medicine · Medicine · Occupational Health and Performance