Disclaimer | Siting | Planned burns
This table is for viewing historic air quality data. To see current air quality information, please go to EPA AirWatch.
To search for historic air quality data, please select ‘choose’. Then enter a date, an hour and click ‘GO’.
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.
* Important information about monitoring PM2.5
As of 28 June 2015 EPA now reports on PM2.5 levels at nine additional sites. These are: Box Hill, Brighton, Dandenong, Mooroolbark, Altona North, Melton, Point Cook, Macleod and Wangaratta. At these sites, PM2.5 is measured using portable air monitoring monitors. All other stations that record PM2.5 use a monitor called a BAM (beta attenuation monitor). These monitors produce data that is a rapid assessment of PM2.5 levels in an area. EPA has done work with these types of monitors that shows they can correlate well with measurements from a BAM. We are currently working to better understand the precision of this equipment. We are doing this by comparing data from portable monitors with data from other types of particle monitors. These mobile instruments provide the community with a more flexible air monitoring network by allowing EPA to monitor air quality at a greater variety of sites. Find out more about the differences between the different kinds of air monitoring equipment and methods.
Data for a given hour are available at 30 minutes after the following hour. For example, data for the period from 9.00 am to 10.00 am is available at 10.30 am. See the Q&A below for more information about station summaries, ‘not available’ and ‘offline’ reports.
EPA collects air quality data using a variety of different monitoring instruments, which are placed in strategic locations – these instruments make up our ‘air monitoring network’. Find out more about EPA’s air monitoring network and what we monitor.
More information on planned burns
For the latest information about when planned burns are happening near you, visit www.ffm.vic.gov.au/plannedburn or the Emergency Victoria website, download the VicEmergency app (Android or iOS) or call the VicEmergency hotline on 1800 226 226.
For further information on minimising health impacts of smoke, visit Bushfire smoke and planned burns on the Department of Health and Human Services (DHHS) website.
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