St Marys Sydney North-west Air Quality

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

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
23 1pm
23
14
13 4pm
13
13
13 7pm
13
13
13 10pm
13
13
13 1am
13
13
— 4am
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— 7am
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— 10am
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CAMS model adj -11
34
34
25
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
40
St Marys Sydney North-west
0.0 km PM2.5: 9.6 µg/m³
39
St Marys Sydney North-west
0.0 km PM2.5: 9.4 µg/m³
42
St Marys Sydney North-west
0.0 km PM2.5: 10.1 µg/m³
52
St Marys Sydney North-west
0.0 km PM2.5: 12.6 µg/m³
76
Sydney Penrith
9.6 km PM2.5: 24.0 µg/m³
33
Sydney Penrith
9.6 km PM2.5: 7.9 µg/m³
39
Prospect Sydney North-west
13.6 km PM2.5: 9.4 µg/m³

Nearby Cities

41 St Clair 41 Mount Druitt 41 Glenmore Park 41 Cranebrook 41 Quakers Hill 41 Blacktown 41 Seven Hills 41 Glenwood 18 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-09T16:27 UTC.