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Compliance Dashboard

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


Summary (year to date)

Monitoring Site Annual mean (µgm-3) Data Capture (%) Number of days exceeding Max daily exceedance (µgm-3)
Heathrow Green Gates 16.4 94.4 0 0
Heathrow Oaks Road 17.0 94.4 0 0
London Harlington 15.3 94.4 0 0
London Hillingdon Oxford Avenue 23.2 72.2 0 0

Exceedance history (year to date)

There are no exceedances to show