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 29.4 98.0 0 n/a
Heathrow Oaks Road 26.5 98.8 0 n/a
London Harlington 20.7 96.8 0 n/a
London Hillingdon Oxford Avenue 38.1 99.8 0 n/a

Exceedance history (year to date)

There are no exceedances to show