In this section:
Current measured levels
- Hillingdon 1 - South Ruislip
- London Hillingdon Oxford Avenue
- London Hillingdon
- London Hillingdon Harmondsworth
- London Hillingdon Harmondsworth Os
- Hillingdon Hayes
- Hillingdon Sipson
Latest Data | Plots | Site Info | Photo |
Automatic monitoring stations
Details for London Hillingdon Harmondsworth
Today's Air Pollution levels are:
Low (Index 2)
at 21:00 on 01/05/2025
Note: These results are based on provisional data.
The data are presented in graphical form based on the
highest pollutant measured at each site.
Current Levels for London Hillingdon Harmondsworth are:
| Parameter | Concentration | Unit | Band | Last updated |
|---|---|---|---|---|
| GE10 | 25 | µg/m3 (Ref.eq) | Low (2) | 01/05/2025 21:00 |
| NO | 2 | µg/m3 | 01/05/2025 21:00 | |
| NO2 | 35 | µg/m3 | Low (1) | 01/05/2025 21:00 |
| NOXasNO2 | 38 | µg/m3 | 01/05/2025 21:00 |