Abstract for presentation at 14th IUAPPA World Congress

Estimation of Emission Sources using FT-IR Measurements

  • Kim Henville, University of Wollongong, Australia
  • A/Prof Stephen Wilson, University of Wollongong, Australia
  • Prof David Griffith, University of Wollongong, Australia
  • Ian Galbally, CSIRO Marine and Atmospheric Research, Australia
  • Dr Mick Meyer, CSIRO Marine and Atmospheric Research, Australia
  • Ian Jamie, Macquarie University, Australia

    • Urban air was sampled periodically at a suburban air-quality monitoring station located in the south-east suburbs of Melbourne, Australia. The mixing ratio of CO, CO2, CH4 and N2O emitted locally was measured in-situ over several seasons using FT-IR spectroscopy. The ratio of the enhancements above background of these species have been determined and combined with meteorological data to estimate local emission source types within the Port Phillip airshed. Local emission source types include motor vehicles, domestic heating, sewage treatment and agriculture. The emission rate of these sources has been estimated and these have been used to assess the validity of current emission inventories. For example, when the dataset is filtered for wind sector and time of day it is possible to select motor vehicle emissions from other sources. Using data from the AGO Greenhouse Gas Inventory on CO2 emissions, the CO emission rate for the motor vehicle source is estimated using a ratio of CO emissions to CO2 emissions from the filtered dataset. The derived CO emission rate can be compared to the estimate of fleet average CO emission rate for Melbourne from a 1997 study to assess the effect of changes in the Melbourne motor vehicle fleet.

    Conference Organiser - ICMS Pty Ltd