EPA AirWatch uses five categories to describe the overall air quality at each of our monitoring sites across Victoria.

We also show an air quality category for each pollutant we measure at a site. A poor, very poor or hazardous category tells you when the level of a pollutant is higher than its air quality guideline or standard.

Air quality categories

Good

It's a good day to be outside.

Moderate

The air quality is okay, but it could change soon.

Poor

The air is probably dusty or smoky. Sensitive groups may experience symptoms like coughing or shortness of breath.

Very poor

The air is probably very dusty or smoky. Everyone could be experiencing symptoms like coughing or shortness of breath.

Hazardous

The air is probably extremely dusty or smoky. Everyone could be experiencing symptoms like coughing or shortness of breath.

Find out more about how we calculate air quality categories.

General health advice

EPA AirWatch also provides general health advice. This includes steps you can take to protect yourself from the short-term effects of air pollution.

Read more about monitoring and forecasting air pollution

About EPA AirWatch

People sensitive to air pollution

Calculating air quality categories

How we forecast air quality

Accreditation of EPA air quality monitoring

Reviewed 28 October 2019