St Marys Sydney North-west

Monitoring Station · St Clair, Australia

39

Good

Air quality is satisfactory. Enjoy outdoor activities.

Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous

AQI Forecast

25 1am

25

25

25 4am

25

25

25 7am

25

27

27 10am

34

34

54 1pm

34

34

— 4pm

—

—

— 7pm

—

—

— 10pm

—

—

Air Quality Trend (24h)

PM2.59.4 µg/m³ ✓ WHO

Good

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Nearby Monitoring Stations

St Marys Sydney North-west

0.0 km PM2.5: 4.6 µg/m³

St Marys Sydney North-west

0.0 km PM2.5: 6.5 µg/m³

9.6 km PM2.5: 2.6 µg/m³

9.6 km PM2.5: 5.5 µg/m³

9.6 km PM2.5: 4.1 µg/m³

9.6 km PM2.5: 6.2 µg/m³

9.6 km PM2.5: 4.3 µg/m³

9.6 km PM2.5: 4.6 µg/m³

Nearby Cities

23 St Clair 23 Mount Druitt 21 Glenmore Park 20 Cranebrook 22 Quakers Hill 21 Blacktown 21 Seven Hills 22 Glenwood 23 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-13T04:51 UTC.