How am I warned about smoke?
An air quality notification is triggered by very short, intense smoke events. They advise particularly susceptible people to take precautions to protect their health.
The Director of Public Health may issue broader health advice during longer, severe smoke events.
What triggers the air quality notification?
An air quality notification is automatically triggered when PM2.5 levels go above 25 micrograms per cubic metre (µg/m3) for one hour.
The notification is based on a much shorter exposure than the 24-hour national standards.
Sometimes there might be an elevated level of smoke for only one or two hours, especially during a burn-off or bushfire. This short episode may not exceed the national standards, but it may be enough for some people to be affected by the smoke.
You can download the free AirRater app to keep track of air quality in your area.
Please note: The notification does not mean that national air quality standards have been, or will be exceeded. There is no national standard in Australia for particle concentrations for a time interval less than a calendar day.