Emission Factors of Greenhouse Gases and Particulates from Australian Savanna Fires

Wednesday, 16 December 2015
Poster Hall (Moscone South)
Maximilien Desservettaz1, Clare Paton-Walsh2, David W T Griffith1, Graham Kettlewell2, Stephen R Wilson2, Melita Keywood3, Marcel Vale van der Schoot3, Paul W Selleck3, Jason Ward3, James Harnwell3, Fabienne Reisen3, Sarah J Lawson3, Zoran Ristovski4, Marc Mallet4, Branka Miljevic4, Brad Atkinson5 and Andjelija Milic4, (1)University of Wollongong, Wollongong, NSW, Australia, (2)University of Wollongong, Wollongong, Australia, (3)CSIRO Marine and Atmospheric Research, Aspendale, Australia, (4)Queensland University of Technology, Brisbane, Australia, (5)Bureau of Meteorology, Melbourne, Australia
In June 2014 a measurement campaign took place at Gunn Point in the Northern Territory, Australia, aimed at characterising the emissions from early dry season savanna fires. The campaign was especially focused on understanding aerosol composition and size distribution. Equipment deployed to measure aerosol properties included a multi-angle absorption photometer, a nephelometer, a cloud condensation nuclei counter, a condensation particle counter, two scanning mobility particle sizer, two aerosol mass spectrometers (one a time of flight instrument) , a multi-axis differential optical absorption spectrometer, a volatility-humidity tandem differential mobility analyser and two high volume aerosol samplers (one PM10 and one MOUDI). In addition there were measurements of mercury in both gas and aerosol phase. Complementary measurements of trace gases were provided by a proton transfer reaction mass spectrometer, a volatile organic compounds sequencer, a Fourier transform spectrometer, an ozone analyser and a nitrogen oxides monitor.

This presentation will present results from the Fourier transform spectrometer, the scanning mobility particulate sizer, the beta attenuation monitor and the aerosol mass spectrometer. In particular individual fire events have been identified and emission factors calculated for CO2, CO, CH4 N2O and aerosols (PM1, PM10, Aitken and Accumulation mode).