St Marys Sydney North-west Air Quality
Monitoring Station
· St Clair, Australia
68
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
27
2am
27
27
27
5am
27
34
54
8am
54
54
54
11am
54
54
54
2pm
54
54
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5pm
—
—
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8pm
—
—
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11pm
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Air Quality Forecast (24h)
PM2.520.2 µg/m³
×1.3 WHO
Moderate
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T05:57 UTC.