St Marys Sydney North-west Air Quality
Monitoring Station
· St Clair, Australia
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
2
5pm
2
2
2
8pm
2
2
2
11pm
2
2
2
2am
2
2
2
5am
2
2
—
8am
—
—
—
11am
—
—
—
2pm
—
—
CAMS model
adj -22
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
Air Quality Forecast (24h)
PM2.54.1 µg/m³
✓ WHO
Good
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-09T20:14 UTC.