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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.

Read next

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

Reviewed 31 October 2019