London Borough of Hillingdon Monitoring Data

Use the tabs below to explore information about the current and historic air pollution levels in this local authority. You can select another local authority using the dropdown menu. 

Days in each index band for London Borough of Hillingdon

Switch to AURN data

Choose a date period below to view a summary of how many days each site had in each index band.

The number of days in each index band for the following date period is shown below: 22/01/2020 - 21/01/2021

Monitoring site Index 1
Low
Index 2
Low
Index 3
Low
Index 4
Moderate
Index 5
Moderate
Index 6
Moderate
Index 7
High
Index 8
High
Index 9
High
Index 10
Very High
Hillingdon South Ruislip (HI1) View pie chart 166 184 14 0 1 0 0 0 0 0
Pie chart illustrating the number of days in each band for this monitoring site
Hillingdon Oxford Avenue (HI3) View pie chart 80 245 35 5 1 0 0 0 0 0
Hillingdon Harmondsworth (HIL1) View pie chart 255 98 13 0 0 0 0 0 0 0
Hillingdon Harmondsworth Osiris (HIL4) View pie chart 149 55 0 0 0 0 0 0 0 0
Hillingdon Hayes (HIL5) View pie chart 98 204 46 4 6 5 1 0 0 0
Heathrow LHR2 (LHR2) View pie chart 259 95 11 1 0 0 0 0 0 0
Heathrow Bath Road (LHRBR) View pie chart 25 37 0 0 0 0 0 0 0 0
Hillingdon Sipson (SIPS) View pie chart 328 19 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 285 70 11 0 0 0 0 0 0 0