St Marys Sydney North-west Air Quality

Monitoring Station · St Clair, Australia
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
22 2pm
13
12
12 5pm
12
12
12 8pm
12
12
12 11pm
12
12
12 2am
12
12
— 5am
—
—
— 8am
—
—
— 11am
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—
CAMS model adj -12
34
25
24
24
24
24
24
24
24
24
24
24
24
24
24

Air Quality Forecast (24h)

PM2.59.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

39
St Marys Sydney North-west
0.0 km PM2.5: 9.4 µg/m³
50
St Marys Sydney North-west
0.0 km PM2.5: 12.0 µg/m³
42
St Marys Sydney North-west
0.0 km PM2.5: 10.1 µg/m³
39
St Marys Sydney North-west
0.0 km PM2.5: 9.4 µg/m³
40
St Marys Sydney North-west
0.0 km PM2.5: 9.6 µg/m³
52
St Marys Sydney North-west
0.0 km PM2.5: 12.6 µg/m³
33
Sydney Penrith
9.6 km PM2.5: 7.9 µg/m³
76
Sydney Penrith
9.6 km PM2.5: 24.0 µg/m³

Nearby Cities

25 St Clair 25 Mount Druitt 25 Glenmore Park 25 Cranebrook 25 Quakers Hill 25 Blacktown 25 Seven Hills 25 Glenwood 40 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-09T17:50 UTC.