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 20:00 on Monday 3rd August 2020

  • Low22
  • Moderate0
  • High0
  • Very High0
  • No Data3
  • 25

    Total monitoring sites

Green Low (1-3) Orange Moderate (4-6) Red High (7-9) Purple Very High (10)
Grey Offline | Find out more about the air pollution index and bandings

« Return to site summary list

Slough Town Centre A4

Sorry, no data are available for this monitoring site on the date selected

This monitoring site closed on 18/11/2019

Note: These results are based on provisional data. The data are presented in graphical form based on the highest pollutant measured at each site.