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Latest air quality summary
Number of monitoring sites in each pollution band
Heathrow Airwatch was last updated at 09:00 on Saturday 20th April 2024
- Low22
- Moderate0
- High0
- Very High0
- No Data0
- 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 2 - Cranford
Sorry, no data are available for this monitoring site on the date selected
This monitoring site closed on 08/04/2020
Note: These results are based on provisional data. The data are presented in graphical form based on the highest pollutant measured at each site.