Air quality and health impacts of vegetation and peat fires in Equatorial Asia during 2004-2015

Kiely, Laura and Spracklen, Dominick and Wiedinmyer, Christine and Conibear, Luke and Reddington, Carly L. and Arnold, Stephen R. and Knote, Christoph and Khan, Md Firoz and Latif, Mohd Talib and Syaufina, Lailan and Adrianto, Hari A. (2020) Air quality and health impacts of vegetation and peat fires in Equatorial Asia during 2004-2015. Environmental Research Letters, 15 (9). ISSN 17489318, DOI

Full text not available from this repository.


Particulate matter (PM) emissions from vegetation and peat fires in Equatorial Asia cause poor regional air quality. Burning is greatest during drought years, resulting in strong inter-annual variability in emissions. We make the first consistent estimate of the emissions, air quality and public health impacts of Equatorial Asian fires during 2004-2015. The largest dry season (August-October) emissions occurred in 2015, with PM emissions estimated as 9.4 Tg, more than triple the average dry season emission (2.7 Tg). Fires in Sumatra and Kalimantan caused 94% of PM emissions from fires in Equatorial Asia. Peat combustion in Indonesian peatlands contributed 45% of PM emissions, with a greater contribution of 68% in 2015. We used the WRF-chem model to simulate dry season PM for the 6 biggest fire years during this period (2004, 2006, 2009, 2012, 2014, 2015). The model reproduces PM concentrations from a measurement network across Malaysia and Indonesia, suggesting our PM emissions are realistic. We estimate long-term exposure to PM resulted in 44 040 excess deaths in 2015, with more than 15 000 excess deaths annually in 2004, 2006, and 2009. Exposure to PM from dry season fires resulted in an estimated 131 700 excess deaths during 2004-2015. Our work highlights that Indonesian vegetation and peat fires frequently cause adverse impacts to public health across the region.

Item Type: Article
Funders: Directorate of Research and Community Service General Director of Strengthening Research and Development Ministry of Research, Technology and Higher Education (Grant No. 4097/IT3.1.1/PN/2019), NERC SPHERES (Grant No. NE/L002574/1), United Bank of Carbon (Grant No. 332397925), Department for Business, Energy and Industrial Strategy, UK Government
Uncontrolled Keywords: fire; air quality; equatorial asia; peat; particulate matter
Subjects: S Agriculture > S Agriculture (General)
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms Zaharah Ramly
Date Deposited: 30 Dec 2023 01:22
Last Modified: 30 Dec 2023 01:22

Actions (login required)

View Item View Item