St Marys Sydney North-west

Monitoring Station · St Clair, Australia
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
74 5am
74
94
94 8am
94
94
106 11am
106
94
94 2pm
94
94
94 5pm
74
67
— 8pm
—
—
— 11pm
—
—
— 2am
—
—
CAMS model adj +40
34
34
54
54
54
54
66
66
54
54
54
54
54
34
27

Air Quality Trend (24h)

PM2.55.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

19
St Marys Sydney North-west
0.0 km PM2.5: 4.6 µg/m³
32
St Marys Sydney North-west
0.0 km PM2.5: 7.7 µg/m³
45
St Marys Sydney North-west
0.0 km PM2.5: 10.8 µg/m³
27
St Marys Sydney North-west
0.0 km PM2.5: 6.5 µg/m³
31
St Marys Sydney North-west
0.0 km PM2.5: 7.4 µg/m³
11
St Marys Sydney North-west
0.0 km PM2.5: 2.6 µg/m³
33
St Marys Sydney North-west
0.0 km PM2.5: 7.9 µg/m³
53
St Marys Sydney North-west
0.0 km PM2.5: 13.1 µg/m³

Nearby Cities

30 St Clair 30 Mount Druitt 29 Glenmore Park 29 Cranebrook 30 Quakers Hill 28 Blacktown 27 Seven Hills 29 Glenwood 27 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T08:14 UTC.