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: 31/05/2019 - 30/05/2020

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 1 - South Ruislip (HI1) View pie chart 214 135 9 0 0 0 0 0 0 0
London Hillingdon Oxford Avenue (HI3) View pie chart 38 288 36 2 1 0 0 0 0 0
London Hillingdon Harmondsworth (HIL1) View pie chart 269 93 3 0 0 0 0 0 0 0
London Hillingdon Harmondsworth Os (HIL4) View pie chart 256 70 1 1 0 0 0 0 0 0
London Hillingdon Hayes (HIL5) View pie chart 59 238 53 7 4 1 1 1 1 0
Heathrow LHR2 (LHR2) View pie chart 148 204 12 1 0 0 0 0 0 0
Heathrow Bath Road (LHRBR) View pie chart 30 94 2 0 0 0 0 0 0 0
Hillingdon Sipson (SIPS) View pie chart 312 51 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 257 100 7 0 0 0 0 0 0 0