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

  • EPA has upgraded eight of its air quality monitors to improve accuracy for PM2.5 readings. This may result in a small difference in recorded values at very low readings (less than 10) in the VERY GOOD and GOOD categories from 9 February 2017.

  • Geelong: Monitoring for sulfur dioxide and visibility reduction is offline due to technical difficulties and sulfur dioxide and visibility reduction data is not being collected at the station. EPA technicians are working to fix the problem. (27 February 2017)

  • Traralgon : Monitoring for carbon monoxide is offline due to technical difficulties and carbon monoxide data is not being collected at the station. EPA technicians are working to fix the problem. (27 February 2017)

  • Geelong: Monitoring for PM2.5 and PM10 is offline due to technical difficulties and PM2.5 and PM10 data is not being collected at the station. EPA technicians are working to fix the problem. (24 February 2017)

  • Wangaratta: Monitoring for PM2.5 is offline due to technical difficulties and PM2.5 data is not being collected at this station. (23 February 2017)
  • Dandenong: Monitoring for PM2.5 is offline due to routine maintenance and PM2.5 data is not being collected at this station. (21 February 2017)
  • Morwell East: Monitoring for PM2.5 is offline due to technical difficulties and PM2.5 data is not being collected at the station. EPA technicians are working to fix the problem. (17 February 2017)

  • Humidity: Humidity can cause low visibility readings in 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. (30 January 2017) 

  • 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 27 Feb 2017