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 18.5 99.7 0 n/a
Heathrow Oaks Road 16.0 95.5 0 n/a
London Harlington 19.1 98.6 0 n/a
London Hillingdon Oxford Avenue 20.7 99.2 0 n/a

Exceedance history (year to date)

There are no exceedances to show