Incident monitoring sites
EPA 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.
Air quality
Pollutant concentrations
Standard monitoring sites
EPA 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.
Air quality
Pollutant concentrations
Sensor monitoring sites
Sensor sites allow us to get an indication of air quality but may not provide correct information when humidity is high (for example, during fog).
If sensors are not available or showing poor air quality, you can check the air quality near you with this self assessment guide. Find out how to protect your health from air pollution.
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More details
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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
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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.
Read more about our National Association of Testing Authorities (NATA) accreditation.
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Footscray air monitoring site 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, 24/04/2025. The air quality forecast for Melbourne is expected to be GOOD. (24 April 2025)
Alphington: Monitoring for sulphur dioxide is offline due to technical difficulties and sulphur dioxide data is not being collected at this site. EPA technicians are working to resolve the issue. (17 April 2025)
Footscray: Air monitoring site has been relocated. Until the new site is established limited air monitoring information for Footscray will be displayed on AirWatch. Air quality information for Altona is available on the AirWatch website (17 April 2025)
Geelong: Monitoring for nitrogen dioxide is offline due to technical difficulties and nitrogen dioxide data is not being collected at this site. EPA technicians are working to resolve the issue. (31 March 2025)
Mooroolbark: Monitoring for ozone is offline due to technical difficulties and ozone data is not being collected at this site. EPA technicians are working to resolve the issue. (21 March 2025)
Fog can cause low visibility readings within EPA’s air monitoring network due to high levels of moisture in the air. EPA staff will monitor visibility readings during periods forecast for high levels of fog. (21 March 2025)
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Are you a developer looking to connect to our application program interface (API)?
Our developer portal lets developers explore the APIs published by EPA Victoria. Just sign up, subscribe to a product and you are all set to access the APIs associated with that product!
Connect to our developer portal.
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Historical hourly air quality data is available at
data.vic.gov.au. Files for each year are uploaded once data validation is complete. To request data not yet available on
data.vic.gov.au, please
contact EPA with the details of your request.
