Air quality in the Sydney metropolitan region during the 2013 Blue Mountains Wildfire
Document Type: Journal Article
Author(s): Rupak Aryal; Dom Kafley; Simon Beecham; Lidia Morawska
Publication Year: 2018

Cataloging Information

  • air pollution
  • air quality
  • Australia
  • NO - nitrogen oxide
  • O3 - ozone
  • PM - particulate matter
  • PM10
  • PM2.5
  • SO - sulpher oxide
  • wildfire
  • International
Record Maintained By:
Record Last Modified: August 13, 2019
FRAMES Record Number: 58433


Australia commonly experiences extensive wildfires, mostly during its hot dry summers. These often lead to a significant loss of life and property. The October 2013 Blue Mountains Fire burnt through more than 100,000 hectares and generated a large amount of fire dust that was transported to the downwind community residing in the Sydney metropolitan area, which is the largest city in Australia. Record-breaking temperatures in New South Wales and strong winds worsened the wildfire danger index, and the extensive fires that broke out by 17th October lasted for more than a week. Analysis of the particulate matter monitored by the New South Wales Environmental Protection Authority around the fire zone showed that the concentrations of PM10 and PM2.5 increased by more than twofold (> 200%) and remained high for a week. During the peak fire period, SOx, NOx and O3 concentrations increased by 52%, 29% and 42%, respectively, above the usual levels recorded in metropolitan Sydney. The increase in the concentrations of these air contaminants in the Sydney metropolitan region over such an extended period may have caused increased human health risks, which are also examined in this paper.

Online Link(s):
Aryal, Rupak; Kafley, Dom; Beecham, Simon; Morawska, Lidia. 2018. Air quality in the Sydney metropolitan region during the 2013 Blue Mountains Wildfire. Aerosol and Air Quality Research 18(9):2420-2432.