Chart air quality data
What’s new
Air quality categories for PM2.5 and sulfur dioxide have been updated to align with changes to national guidelines
About Ozone
Ozone is a colourless, highly reactive gas with a distinctive odour. The upper atmosphere ozone layer (at altitudes of 15–35km) protects the earth from harmful ultraviolet radiation from the sun. The ozone layer reduction represents a global atmosphere issue.
The guideline for Ozone is 0.065ppm (8hr avg).
Ozone is measured in parts per million.
