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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 12.2 92.5 0 0
Heathrow Oaks Road 11.8 98.1 0 0
London Harlington 10.6 98.1 1 54
London Hillingdon Oxford Avenue 21.5 94.3 0 0

Exceedance history (year to date)

Number Date Monitoring Site Max exceeding
concentration
(µgm-3)
1 08/03/2024 London Harlington 54.0