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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 | 21.0 | 99.8 | 0 | n/a |
| Heathrow Oaks Road | 20.0 | 99.7 | 0 | n/a |
| London Harlington | 21.6 | 99.6 | 0 | n/a |
| London Hillingdon Oxford Avenue | 27.4 | 90.9 | 2 | 216.4 |
Exceedance history (year to date)
| Number | Date | Monitoring Site | Max exceeding concentration (µgm-3) |
|---|---|---|---|
| 1 | 08/09/2023 | London Hillingdon Oxford Avenue | 216.4 |
