St Marys Sydney North-west Air Quality
Monitoring Station
· St Clair, Australia
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
24
11am
59
25
25
2pm
25
25
24
5pm
24
24
24
8pm
25
25
24
11pm
24
25
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2am
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5am
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8am
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Station readings
59
Air Quality Forecast (24h)
PM2.515.9 µg/m³
×1.1 WHO
Moderate
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T14:47 UTC.