Our Air Quality Monitoring Program is designed to provide the framework to prevent, or otherwise mitigate effects that our activities could have on the local community and the environment. The program also determines the effectiveness of our control measures and ensures we are compliant with consent and licence conditions.
What we monitor
PM10 and PM2.5 Ambient Air Quality Monitoring – BAMs (Beta Attenuation Monitors) provide continuous PM10 and PM2.5 particulate concentration measurements using the industry proven principle of beta ray attenuation. Eight BAM’s are in continuous operation at various locations around the Cadia district.
Dust Deposition Gauges - (DDG’s) are located at eleven sites around the Cadia District and the Cadia Dewatering Plant. The DDGs are analysed monthly for metals and total dissolved and insoluble solids.
Visual Dust Monitoring - Visual dust is monitored during routine inspections and when complaints are received. Where excessive dust generation has been identified, mitigation measures are implemented.
Meteorological Monitoring - We also utilise our on-site weather stations as part of our air quality monitoring program.
Parameters for monitoring in the Cadia Air Quality Monitoring Program
Frequency of sampling
Insoluble Solids Ash Content Combustible Material Solubles Total Solids Total Copper
Approved Method– 19 AS 3580.10.1-1991
24 hour continual
Approved Method– 22 AS 3580.9.8-2001
Tailings Dust Environmental Health Assessment and Air Quality Monitoring Study
In response to community concerns, we completed a comprehensive study into the potential environmental health impacts of the tailings dust and commenced additional testing and monitoring during 2020 and early 2021. The study found that there is no current evidence to suggest that dust from the Cadia tailings storage facilities or emissions from the mine ventilation system pose a health risk to the community. For more information, see the Fact Sheet and Report.