Sydney Air Quality Index
Sydney, Australia · Real-time AQI data
Air quality is satisfactory, and air pollution poses little or no risk.
Pollutant Breakdown
PM2.5
11µg/m³
PM10
6µg/m³
O₃
5.6ppm
NO₂
14ppb
CO
1.1ppm
Station: Cook And Phillip Sydney East · Mar 18, 07:00 AM · Updates every 30 min
Health Recommendations
Air quality is satisfactory, and air pollution poses little or no risk.
How does Sydney compare to other cities?
Compare →AQI Scale Reference
About Air Quality in Sydney
The Air Quality Index (AQI) in Sydney is measured using monitoring stations that track six key pollutants: PM2.5, PM10, ground-level ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide. The AQI is calculated using US EPA standards and ranges from 0 (excellent) to 500 (hazardous).
PM2.5 is typically the dominant pollutant in Sydney during high-pollution periods. Fine particulate matter from traffic, industry, and seasonal factors can push AQI above 150, which is considered unhealthy for all groups.
Check the health effects guide to understand what today's AQI means for your activity level, or see the global AQI rankings to compare Sydney with other cities worldwide.