St Marys Sydney North-west

Monitoring Station · St Clair, Australia
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
44 3am
27
44
44 6am
64
64
64 9am
64
76
76 12pm
64
64
64 3pm
64
64
— 6pm
—
—
— 9pm
—
—
— 12am
—
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Station readings
27
CAMS model adj +10
34
34
34
34
54
54
54
54
66
66
54
54
54
54
54

Air Quality Trend (24h)

PM2.56.5 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

18
St Marys Sydney North-west
0.0 km PM2.5: 4.3 µg/m³
19
St Marys Sydney North-west
0.0 km PM2.5: 4.6 µg/m³
53
St Marys Sydney North-west
0.0 km PM2.5: 13.1 µg/m³
33
St Marys Sydney North-west
0.0 km PM2.5: 7.9 µg/m³
32
St Marys Sydney North-west
0.0 km PM2.5: 7.7 µg/m³
11
St Marys Sydney North-west
0.0 km PM2.5: 2.6 µg/m³
22
St Marys Sydney North-west
0.0 km PM2.5: 5.3 µg/m³
52
St Marys Sydney North-west
0.0 km PM2.5: 12.6 µg/m³

Nearby Cities

27 St Clair 28 Mount Druitt 29 Glenmore Park 30 Cranebrook 32 Quakers Hill 25 Blacktown 24 Seven Hills 30 Glenwood 23 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T06:17 UTC.