Emissions to air have the potential to adversely impact upon health, the environment and local public amenities. In response to these potential impacts, data has been collected for key emissions to air from stationary and mobile sources. For the Prominent Hill operation, these emissions are reported annually to the Australian Government Department of the Environment, Water, Heritage and the Arts National Pollutant Inventory.
Outside of greenhouse gas emissions, the main emissions to air are dust generated by stockpiling and moving materials, and from vehicles operating on unsealed surfaces. Oxides of sulphur and nitrogen are generated from the burning of fuels. There have been no reported ozone-depleting substances produced at any operation. Air emissions by type and weight for Prominent Hill are provided in the table below.
| Type1 | NOx | SOx | Volatile organic compounds (VOC) | Particulate matter | Stack and fugitive emissions |
|---|---|---|---|---|---|
| Tonnes | 856 | 2 | 62 | 6,282 | 4,958 |
1 Data collected from 2008–09 financial year.