Incident monitoring sitesEPA and VICSES can deploy equipment to monitor air quality near an incident like a fire. Incident sites give us immediate data about impacts to air quality and are used to make decisions about what EPA and other agencies do next.
Standard monitoring sitesEPA has monitoring sites in population centres around Victoria. The air quality where you are might be different to what you see on EPA AirWatch, even if there’s a monitoring site close to you. This is because there are many factors that can affect air quality. For example, wind direction and smoke from wood fires.
Sensor monitoring sites
Sensor sites allow us to get an indication of air quality in more areas but do not provide correct information when humidity is high (for example, during fog). Sensor site information is not displayed on EPA AirWatch when humidity at the site is above 80%. If sensors are not available or showing poor, very poor or extremely poor air quality, please double check the result with a nearby standard site.
A dash (-) means we don't monitor for that pollutant at that site
Not Available (NA) means we usually monitor for that pollutant at that site but the data is not available at the moment
Data on EPA AirWatch comes directly from our air monitoring stations using various types of monitoring equipment and methods. This data may be adjusted later according to set criteria to account for instrument errors, power interruptions and other technical issues.
EPA aims to locate our ambient monitoring stations so they give a good representation of the air quality experienced by the public. As most of the Victorian population lives and works close to roads, most of our stations are in population centres next to roads. This can mean we do not always comply with one of the requirements of the Australian Standard for siting (AS 3580.1.1), which specifies that air monitoring stations should be more than 50 metres away from a road. Currently, Footscray is the only EPA air monitoring site that meets this requirement.
Read more about our National Association of Testing Authorities (NATA) accreditation.
Altona North: Monitoring for PM2.5 and sulfur dioxide is offline due to technical difficulties and PM2.5 and sulfur dioxide data is not being collected at this station. EPA technicians are working to fix the problem. (12 April 2021)
Traralgon: air monitoring station is offline due to routine maintenance and data is not being collected at this station. EPA expects data to become available on the website from 5pm, 19/04/21. The air quality forecast for Latrobe Valley is expected to be GOOD. (19 April 2021)
Melbourne CBD: Monitoring for PM2.5 is offline due to routine maintenance and PM2.5 data is not being collected at this station. EPA expects data to become available on the website from 5pm, 23/04/21. The air quality forecast for Melbourne is expected to be GOOD. (19 April 2021)
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