The St Marys air quality monitoring station is located on residential property off Mamre Road, St Marys. It is situated in the centre of the Hawkesbury basin in a semi-rural area.
Air quality monitoring region: Sydney north-west
Commissioned: October 1992
Latitude: 33° 47' 50"S
Longitude: 150° 45' 57"E
Elevation: 29 metres
Using data from this station, we provide hourly pollutant concentrations, 24-hour summary and air quality category ratings (AQC)>.
The following air pollutants and meteorological variables are currently measured at St. Marys:
- Ozone (O3)
- Oxides of nitrogen (NO, NO2 and NOx)
- Visibility using nephelometry
- Fine particles as PM10
- Fine particles as PM2.5
- Wind speed, wind direction and sigma theta
- Ambient temperature
- Relative humidity