Note: This dashboard only shows data from the monitoring sites at Heathrow Airport.
Summary (year to date)
|Monitoring Site||Annual mean (µgm-3)||Data Capture||Number of hours exceeding||Max hourly exceedance (µgm-3)|
|Heathrow Green Gates||29.9||98.6||0||n/a|
|Heathrow Oaks Road||26.2||92.8||0||n/a|
|London Hillingdon Oxford Avenue||30.1||99.4||0||n/a|
Exceedance history (year to date)
There are no exceedances to show