Polluted air can affect human health and the environment. In Victoria, sources of pollution like industry emissions, vehicle exhaust, smoke from fires and dust can impact our air.
A key indicator of air quality is the amount of PM2.5 in the air. PM stands for 'particulate matter', and the 2.5 refers to size. To help you understand, we mean matter that has a diameter of 2.5 micrometres or smaller.
A micrometre is one thousandth of a millimetre. In comparison, a fine grain of sand measures about 90 micrometres across, and a human hair averages a width of about 75 micrometres. So PM2.5 particles are really small – small enough for you to breathe them deeply into your lungs.
People who are sensitive to air pollution might experience symptoms when PM2.5 levels are high. This could include young children, older people, pregnant women and people with allergies, heart or lung conditions.
They might experience symptoms like wheezing, coughing, tightness of the chest or difficulty breathing. If you’re worried about your symptoms, see your doctor or call NURSE-ON-CALL on 1300 606 024. And if you experience chest tightness or difficulty breathing, call 000.
You can stay up to date with air quality in your area by visiting EPA AirWatch. Air quality data is categorised from Good to Extremely Poor. EPA AirWatch also includes air quality forecasts for Victoria. You can use forecasts to help plan your day.
For more information about smoke and air quality, visit our website: epa.vic.gov.au.
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