St Marys Sydney North-west

Monitoring Station · St Clair, Australia
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
42 7am
42
42
42 10am
54
54
42 1pm
42
42
42 4pm
42
22
15 7pm
15
22
— 10pm
—
—
— 1am
—
—
— 4am
—
—
CAMS model adj -12
54
54
54
54
66
66
54
54
54
54
54
34
27
27
34

Air Quality Trend (24h)

PM2.57.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

22
St Marys Sydney North-west
0.0 km PM2.5: 5.3 µg/m³
11
St Marys Sydney North-west
0.0 km PM2.5: 2.6 µg/m³
45
St Marys Sydney North-west
0.0 km PM2.5: 10.8 µg/m³
53
St Marys Sydney North-west
0.0 km PM2.5: 13.1 µg/m³
27
St Marys Sydney North-west
0.0 km PM2.5: 6.5 µg/m³
32
Sydney Penrith
9.6 km PM2.5: 7.7 µg/m³
23
Sydney Penrith
9.6 km PM2.5: 5.5 µg/m³
30
Sydney Penrith
9.6 km PM2.5: 7.2 µg/m³

Nearby Cities

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

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T10:08 UTC.