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Air pollution is when there are harmful levels of gases or particles in the air. Polluted air can impact our health and environment.
Examples of air pollutants are carbon monoxide, ozone, nitrogen dioxide, sulfur dioxide and PM2.5 and PM10 particles. In Victoria, air pollutants mainly come from industry, vehicles and wood burning.
EPA has a key role in reducing emissions that lead to air pollution. We regulate industry and monitor air quality across Victoria. Air quality information is available at EPA AirWatch.
Learn about air pollution
Carbon monoxide in the air
Nitrogen dioxide in the air
Ozone in the air
Sulfur dioxide in the air
PM2.5 particles in the air
How EPA monitors PM2.5 particles
PM10 particles in the air
Visibility reduction from air pollution
Air quality index
How EPA calculates an air quality index
Air toxins: publications and projects