Heathrow Airwatch uses cookies to make the site simpler. Find out more about this

Compliance Dashboard

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

NO2

Summary (year to date)

Monitoring Site Annual mean (µgm-3) Data Capture Number of hours exceeding Max hourly exceedance (µgm-3)
Heathrow Green Gates 18.3 99.7 0 n/a
Heathrow Oaks Road 15.7 99.8 0 n/a
London Harlington 18.5 98.3 0 n/a
London Hillingdon Oxford Avenue 19.5 99.5 0 n/a

Exceedance history (year to date)

There are no exceedances to show