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
50 12pm
30
30
21 3pm
20
20
20 6pm
20
20
20 9pm
20
20
20 12am
20
20
— 3am
—
—
— 6am
—
—
— 9am
—
—
CAMS model adj -4
54
34
34
25
24
24
24
24
24
24
24
24
24
24
24

Air Quality Forecast (24h)

PM2.59.4 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

42
St Marys Sydney North-west
0.0 km PM2.5: 10.1 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
52
St Marys Sydney North-west
0.0 km PM2.5: 12.6 µg/m³
75
Sydney Penrith
9.6 km PM2.5: 23.5 µg/m³
33
Sydney Penrith
9.6 km PM2.5: 7.9 µg/m³
77
Sydney Penrith
9.6 km PM2.5: 24.5 µg/m³
76
Sydney Penrith
9.6 km PM2.5: 24.0 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 2026-08-09T15:24 UTC.