This data is based on data available in 2008 Calendar year Air Emissions Inventory for the Greater Metropolitan Region in NSW published by the NSW EPA, available at http://www.epa.nsw.gov.au/air/airinventory2008.htm.
Data used to produce figure ATM30 in the 2016 SoE available at https://soe.environment.gov.au/theme/ambient-air-quality/topic/2016/pollution-sources#ambient-air-quality-figure-ATM30