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.

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 17.6 97.3 4 56
Heathrow Oaks Road 19.4 93.8 4 61
London Harlington 20.0 99.1 6 65
London Hillingdon Oxford Avenue 24.6 88.4 4 64

Exceedance history (year to date)

Number Date Monitoring Site Max exceeding
concentration
(µgm-3)
1 25/02/2019 London Harlington 55.0
2 26/02/2019 London Harlington 58.0
3 27/02/2019 Heathrow Green Gates 52.0
4 27/02/2019 London Harlington 65.0
5 27/02/2019 London Hillingdon Oxford Avenue 55.0
6 27/02/2019 Heathrow Oaks Road 61.0
7 16/04/2019 Heathrow Green Gates 53.0
8 16/04/2019 London Harlington 61.0
9 16/04/2019 London Hillingdon Oxford Avenue 64.0
10 16/04/2019 Heathrow Oaks Road 59.0
11 17/04/2019 London Harlington 56.0
12 17/04/2019 London Hillingdon Oxford Avenue 62.0
13 17/04/2019 Heathrow Green Gates 52.0
14 17/04/2019 Heathrow Oaks Road 59.0
15 18/04/2019 London Harlington 62.0
16 18/04/2019 London Hillingdon Oxford Avenue 63.0
17 18/04/2019 Heathrow Green Gates 56.0
18 18/04/2019 Heathrow Oaks Road 60.0