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Latest air quality summary

Number of monitoring sites in each pollution band

Heathrow Airwatch was last updated at 04:00 on Friday 29th March 2024

  • Low21
  • Moderate0
  • High0
  • Very High0
  • No Data1
  • 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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London Hillingdon Harmondsworth Os

Site Information
Environment Type Not Available
Coordinates (Lat/Long) 51.488056, -0.481021
Altitude Not Available
Kerb Distance Not Available
Site Comments The site is in Hillingdon area

Monitoring Networks

Hillingdon Monitoring Network

Parameter Date Started Date Ended
PM1 Particulates 01/07/2007 -
PM10 Particulate matter 01/07/2007 -
PM10 Particulate matter 01/07/2007 -
PM2.5 Particulate matter 01/07/2007 -
Total Particulates 01/07/2007 -

Heathrow airwatch

Parameter Date Started Date Ended
Modelled Temperature 01/08/2010 -
Modelled Wind Direction 01/08/2010 -
Modelled Wind Speed 01/08/2010 -
PM1 Particulates 01/07/2007 -
PM10 Particulate matter 01/07/2007 -
PM10 Particulate matter 01/07/2007 -
PM2.5 Particulate matter 01/07/2007 -
Total Particulates 01/07/2007 -