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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 | 11.8 | 97.2 | 0 | 0 |
| Heathrow Oaks Road | 11.9 | 98.6 | 0 | 0 |
| London Harlington | 11.9 | 99.3 | 3 | 131 |
| London Hillingdon Oxford Avenue | 17.5 | 96.5 | 0 | 0 |
Exceedance history (year to date)
| Number | Date | Monitoring Site | Max exceeding concentration (µgm-3) |
|---|---|---|---|
| 1 | 08/03/2024 | London Harlington | 54.0 |
| 2 | 10/07/2024 | London Harlington | 66.0 |
| 3 | 11/07/2024 | London Harlington | 131.0 |
