Heathrow Airwatch uses cookies to make the site simpler. Find out more about this
Latest air quality summary
Number of monitoring sites in each pollution band
Heathrow Airwatch was last updated at 06:00 on Wednesday 18th September 2019
- Low23
- Moderate0
- High0
- Very High0
- No Data3
- 26
Total monitoring sites
Low (1-3)
Moderate (4-6)
High (7-9)
Very High (10)
Offline |
Find out more about the air pollution index and bandings
Click on a monitoring site from the map above or the text summary below to view the latest data and graphs for the selected site.
Site Summary
| Monitoring site | Band/Index | Last updated |
|---|---|---|
| Heathrow Green Gates | LOW (Index 1) | PM10 18/09/2019 05:00 PM2.5 18/09/2019 05:00 NO2 18/09/2019 04:00 |
| Heathrow LHR2 | LOW (Index 1) | NO2 18/09/2019 05:00 PM10 18/09/2019 05:00 PM2.5 18/09/2019 05:00 BC 18/09/2019 05:00 |
| Heathrow Oaks Road | LOW (Index 1) | PM10 18/09/2019 05:00 PM2.5 18/09/2019 05:00 BC 18/09/2019 05:00 NO2 18/09/2019 04:00 |
| Hillingdon 1 - South Ruislip | LOW (Index 1) | 18/09/2019 05:00 |
| Hillingdon Hayes | LOW (Index 3) | 18/09/2019 03:00 |
| Hillingdon Sipson | LOW (Index 1) | 18/09/2019 03:00 |
| Hounslow 2 - Cranford | NO DATA | 17/09/2019 22:00 |
| Hounslow 4 - Chiswick High Road | LOW (Index 2) | 18/09/2019 04:00 |
| Hounslow Boston Manor Park | LOW (Index 1) | 18/09/2019 05:00 |
| Hounslow Brentford | LOW (Index 2) | 18/09/2019 04:00 |
| Hounslow Feltham | LOW (Index 1) | 18/09/2019 05:00 |
| Hounslow Gunnersbury | LOW (Index 1) | 18/09/2019 05:00 |
| Hounslow Hatton Cross | LOW (Index 1) | 18/09/2019 05:00 |
| Hounslow Heston Road | LOW (Index 2) | 18/09/2019 05:00 |
| London Harlington | LOW (Index 1) | O3 18/09/2019 05:00 NO2 18/09/2019 05:00 PM10 18/09/2019 05:00 PM2.5 18/09/2019 05:00 |
| London Hillingdon | LOW (Index 1) | 18/09/2019 05:00 |
| London Hillingdon Harmondsworth | LOW (Index 1) | 18/09/2019 03:00 |
| London Hillingdon Harmondsworth Os | LOW (Index 1) | 17/09/2019 24:00 |
| London Hillingdon Oxford Avenue | LOW (Index 2) | 18/09/2019 03:00 |
| Slough Brands Hill London Road | LOW (Index 2) | 18/09/2019 05:00 |
| Slough Chalvey M4 | NO DATA | 17/09/2019 18:00 |
| Slough Colnbrook | LOW (Index 1) | 17/09/2019 22:00 |
| Slough Town Centre A4 | NO DATA | 12/09/2019 13:00 |
| Slough Town Centre Wellington Street | LOW (Index 1) | 18/09/2019 05:00 |
| Slough Windmill Bath Road | LOW (Index 2) | 18/09/2019 05:00 |
| Spelthorne Sunbury Cross | LOW (Index 1) | 18/09/2019 05:00 |
