Monitoring the environment

EPA AirWatch


Disclaimer | Siting

Air quality index categories

AQI very good air quality Very good air quality AQI good air quality Good air quality AQI fair air quality Fair air quality AQI poor air quality Poor air quality AQI very poor air quality Very poor air quality "" Not available "" Incident air monitoring

Health categories

"" Unhealthy for sensitive groups "" Unhealthy all "" Very unhealthy all "" Hazardous "" Hazardous extreme

Disclaimer: 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.

Siting: 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.

Current notices

  • Alphington: Monitoring for Ozone is offline due to routine maintenance and data is not being collected at this station. EPA expects data to be displayed on the website from 4:00pm 20/01/2017. (19 January 2017).

  • Altona North: Monitoring for Nitrogen Dioxide and Sulfur Dioxide is offline due to routine maintenance and data is not being collected at this station. EPA expects data to be displayed on the website from 4:00pm 20/01/2017. (19 January 2017).

  • Humidity: Humidity 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 humidity and communicate any issues if required. (29 December 2016)

  • Morwell East: Monitoring for PM2.5 is offline due to technical difficulties and data is not being collected at the station. EPA technicians are working to fix the problem. (28 December 2016)
  • Richmond: EPA is looking for a new site for its Richmond air monitoring due to problems with access at its existing location. Interim monitoring equipment will soon be installed in a location near Melbourne’s CBD to monitor PM2.5. Until the new location is confirmed, air monitoring data from Richmond will not be displayed. (16 September 2016)  

Learn more about EPA AirWatch

NATA accreditation number: 15113

Page last updated on 19 Jan 2017