St Marys Sydney North-west Air Quality
Monitoring Station
· St Clair, Australia
61
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
54
9pm
54
54
34
12am
27
27
27
3am
27
27
27
6am
34
54
54
9am
54
54
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12pm
—
—
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3pm
—
—
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6pm
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Air Quality Forecast (24h)
PM2.516.9 µg/m³
×1.1 WHO
Moderate
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T00:34 UTC.