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Latest air quality summary
Number of monitoring sites in each pollution band
Heathrow Airwatch was last updated at 12:00 on Saturday 11th May 2024
- Low20
- Moderate0
- High0
- Very High0
- No Data2
- 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
London Hillingdon Harmondsworth Os
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