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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.  

Air qualityHourly air quality bulletins

This bulletin displays the latest air quality data for Victoria.

Go to the hourly air quality interactive map

Go to the hourly air quality data table

Please note that current data may not be shown for some air quality monitoring stations. Measurements are made continuously at air monitoring stations, but there may be temporary technical issues with the collection and display of data.

24 hour air quality summary

This page is a summary of air quality over the preceding 24 hours.

Go to the air quality summary

Weekly air quality summary

This page is a summary of air quality over the preceding 7 days. 

Go to the weekly air quality summary

About air quality bulletins

This page contains information about air quality standards and categories, and how an air monitoring station summary is determined.

More on air quality bulletins

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.

More on the air quality index

Air monitoring stations

View a map of the Port Phillip Bay region and the location of the EPA air monitoring stations.

More on EPA's 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.

More on City Link Air Quality