Latest air quality summary
Number of monitoring sites in each pollution band
Heathrow Airwatch was last updated at 23:00 on Sunday 19th May 2024
- Low20
- Moderate1
- High0
- Very High0
- No Data1
- 22
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
Offline | Find out more about the air pollution index and bandings
Hounslow Heston Road
The photo for this monitoring site is shown below, if available.