EPA AirWatch has recently been upgraded. To ensure you are viewing the most recent version of the map, we recommend you refresh the page.
EPA AirWatch is a map that shows air quality information measured by EPA’s air monitoring stations around Victoria. To get the most from EPA AirWatch, we recommend you first visit About EPA AirWatch.
Air monitoring information is also available at the hourly air quality data table.
On occasion, data may not show on the map below for a variety of reasons, such as monitoring station maintenance, equipment breakdown or website issues. See current notices below.
During winter months, EPA switches off equipment that we use to monitor summer ozone in parts of our network (mostly in metropolitan Melbourne). We will switch them back on before the start of next summer.
EPA AirWatch key
Very good air quality Good air quality Fair air quality Poor air quality Very poor air quality Not available
Unhealthy for sensitive groups Unhealthy all Very unhealthy all Hazardous Hazardous extreme
Disclaimer: The data used to compile EPA AirWatch comes directly from EPA’s air monitoring stations. This data may be adjusted at a later time as part of our quality management system to allow for instrument errors, power interruptions and other technical issues.
EPA is improving its air monitoring network to enable it to measure air quality beyond Melbourne, Geelong and the Latrobe Valley. To give EPA’s network more coverage, we have removed ozone and visibility equipment from the Box Hill and Brighton monitoring stations for use in other areas; however both stations will continue to monitor small particles known as PM2.5, a key indicator of air quality. (12 August 2016) .
Monitoring for Sulfur Dioxide at Altona North air monitoring station is offline due to technical difficulties and Sulfur Dioxide data is not being collected at this station. EPA technicians are working to fix the problem and we will update this message again at 4pm 31 August 2016. (26 August 2016)
How EPA monitors the air
Watch the video to learn what happens inside one of EPA’s air monitoring stations.
Effects of smoke
Information about fine particles in smoke, the potential health effects and the health categories EPA shows on EPA AirWatch.
EPA AirWatch hourly air quality data table
A table view of the air quality data for Victoria.