St Marys Sydney North-west

Monitoring Station · St Clair, Australia
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
56 3am
56
56
56 6am
56
56
58 9am
58
65
65 12pm
85
65
65 3pm
65
65
— 6pm
—
—
— 9pm
—
—
— 12am
—
—
CAMS model adj +31
25
25
25
25
25
25
27
27
34
34
54
34
34
34
34

Air Quality Trend (24h)

PM2.54.6 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
19
St Marys Sydney North-west
0.0 km PM2.5: 4.6 µg/m³
27
St Marys Sydney North-west
0.0 km PM2.5: 6.5 µg/m³
26
Sydney Penrith
9.6 km PM2.5: 6.2 µg/m³
23
Sydney Penrith
9.6 km PM2.5: 5.5 µg/m³
17
Sydney Penrith
9.6 km PM2.5: 4.1 µg/m³
11
Sydney Penrith
9.6 km PM2.5: 2.6 µg/m³
19
Sydney Penrith
9.6 km PM2.5: 4.6 µg/m³

Nearby Cities

19 St Clair 19 Mount Druitt 19 Glenmore Park 19 Cranebrook 18 Quakers Hill 21 Blacktown 21 Seven Hills 21 Glenwood 25 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-13T06:47 UTC.