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 Os
Today's Air Pollution levels are:
Low (Index 2)
at 05:00 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 Os are:
| Parameter | Concentration | Unit | Band | Last updated |
|---|---|---|---|---|
| GE10 | 23 | µg/m3 (INDIC GRAV) | Low (2) | 01/05/2025 05:00 |
| PM1 | 8 | µg/m3 (Osiris) | 01/05/2025 05:00 | |
| PM25 | 12 | µg/m3 (Osiris) | Low (2) | 01/05/2025 05:00 |
| TSP | 25 | µg/m3 (Osiris) | 01/05/2025 05:00 |