Australian atmospheric measurements and emissions estimates of ozone depleting substances and synthetic greenhouse gases

CSIRO Marine and Atmospheric Research, 2014

About the document

The Australian Atmospheric Measurements & Emissions Estimates of Ozone Depleting Substances and Synthetic Greenhouse Gases report was produced by CSIRO on behalf of the Department of the Environment. It details the abundance and trends of 41 ozone depleting substances (ODS), synthetic greenhouse gases (SGG) and greenhouse gases (GHG) as measured at Cape Grim, Tasmania.

The report found that, over the period 2005-2011, the combined emissions of SGGs and ODSs in Australia are growing by four per cent per year. The growth is driven by increases in emissions of HFCs, HCFCs, SF6 and SO2F2. CFC and CTC emissions are steady and only PFC emissions show a decline over this period. Total SGG emissions (for ODSs plus HFCs/PFCs/SF6), actually account for four to five per cent of Australia’s GHG emissions.

Over the period 2005-2011, HCFC emissions peaked in 2010 (2,700 tonnes), dropping to 2,640 tonnes in 2011. HCFC-22 emissions continue to increase four to five per cent/yr), whereas the other HCFC emissions (HCFC-124, HCFC-141b, HCFC-142b) are in decline. Australian HCFC emissions in 2011 (2,640 tonnes) were 0.6 per cent of global HCFC emissions (464 kilo tonnes).

During the same period, Australian CFC emissions peaked at about 1,560 tonnes in 2007, falling to 1,280 tonnes in 2011 and are declining by about five per centper year. Australian CFC emissions are estimated to be 0.9 per cent of global CFC emissions.