Air quality bulletins
EPA measures a range of pollutants at each of its monitoring stations and provides air quality bulletins that aim to display air quality data in a meaningful form. This section describes the bulletins and how the information in them is calculated.
24 hour air quality summary
This page is a summary of air quality over the preceding 24 hours.
Weekly air quality summary
This page is a summary of air quality over the preceding 7 days.
About air quality bulletins
This page contains information about air quality standards and categories, and how an air monitoring station summary is determined.
Air quality index
EPA reports air quality measurements as an air quality index. The lower the index is, the better the quality of our air. This page describes how the index is calculated.
Air monitoring stations
View a map of the Port Phillip Bay region and the location of the EPA air monitoring stations.
City Link Air Quality
This page contains information about emissions from the Burnley and Domain City Link tunnels for the previous 24-hour period. The data is provided by Translink Operations.