St Marys Sydney North-west

Monitoring Station · St Clair, Australia
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
4 7am
53
40
40 10am
40
40
52 1pm
52
40
40 4pm
40
40
40 7pm
40
40
— 10pm
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—
— 1am
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— 4am
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Station readings
4
53
CAMS model adj -14
54
54
54
54
54
54
66
66
54
54
54
54
54
54
54

Air Quality Trend (24h)

PM2.513.1 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

28
St Marys Sydney North-west
0.0 km PM2.5: 6.7 µg/m³
47
St Marys Sydney North-west
0.0 km PM2.5: 11.3 µg/m³
25
St Marys Sydney North-west
0.0 km PM2.5: 6.0 µg/m³
53
St Marys Sydney North-west
0.0 km PM2.5: 13.1 µg/m³
20
St Marys Sydney North-west
0.0 km PM2.5: 4.8 µg/m³
27
St Marys Sydney North-west
0.0 km PM2.5: 6.5 µg/m³
27
Sydney Penrith
9.6 km PM2.5: 6.5 µg/m³
20
Sydney Penrith
9.6 km PM2.5: 4.8 µg/m³

Nearby Cities

48 St Clair 38 Mount Druitt 36 Glenmore Park 29 Cranebrook 25 Quakers Hill 28 Blacktown 29 Seven Hills 24 Glenwood 26 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-18T10:59 UTC.