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Compliance Dashboard

Note: This dashboard only shows data from the monitoring sites at Heathrow Airport.

PM10

Summary (year to date)

Monitoring Site Annual mean (µgm-3) Data Capture (%) Number of days exceeding Max daily exceedance (µgm-3)
Heathrow Green Gates 11.8 99.6 0 0
Heathrow Oaks Road 13.2 99.6 0 0
London Harlington 14.2 96.9 1 51
London Hillingdon Oxford Avenue 23.0 98.1 5 60

Exceedance history (year to date)

Number Date Monitoring Site Max exceeding
concentration
(µgm-3)
1 08/04/2020 London Hillingdon Oxford Avenue 55.0
2 09/04/2020 London Harlington 51.0
3 09/04/2020 London Hillingdon Oxford Avenue 60.0
4 16/04/2020 London Hillingdon Oxford Avenue 55.0
5 12/08/2020 London Hillingdon Oxford Avenue 55.0
6 15/09/2020 London Hillingdon Oxford Avenue 58.0