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Latest air quality summary

Number of monitoring sites in each pollution band

Heathrow Airwatch was last updated at 00:00 on Thursday 25th April 2024

  • Low22
  • Moderate0
  • High0
  • Very High0
  • No Data0
  • 22

    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

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Slough Chalvey M4

Site Information
Environment Type
Coordinates (Lat/Long) ,
Altitude
Kerb Distance
Site Comments

Monitoring Networks

Heathrow airwatch

Parameter Date Started Date Ended
Modelled Temperature 01/08/2010 27/10/2021
Modelled Wind Direction 01/08/2010 27/10/2021
Modelled Wind Speed 01/08/2010 27/10/2021
Nitric Oxide 19/07/2005 27/10/2021
Nitrogen dioxide 19/07/2005 27/10/2021
Oxides of Nitrogen 19/07/2005 27/10/2021

Slough monitoring network

Parameter Date Started Date Ended
Nitric Oxide 19/07/2005 27/10/2021
Nitrogen dioxide 19/07/2005 27/10/2021
Oxides of Nitrogen 19/07/2005 27/10/2021