Air quality readings and Air Quality Categories (AQC) are updated hourly and a daily air quality forecast is made for the Greater Sydney Metropolitan Region at 4pm every day. Be aware that your closest station might record different values than other stations in your region. Our health activity guide explains the AQC and provides associated health advice.
Air quality by region
Incident monitoring project stations
Temporary emergency monitoring is sometimes undertaken by the Department.
Launch the interactive map to view locations of all air quality monitoring stations across NSW.