Greater London 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 Greater London

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: 02/06/2019 - 01/06/2020

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
Tally Ho (BN1) View pie chart 149 201 16 0 0 0 0 0 0 0
London Barnet Chalgrove School (BN2) View pie chart 214 145 7 0 0 0 0 0 0 0
Shepherd's Bush (HF4) View pie chart 39 290 34 3 0 0 0 0 0 0
Hammersmith Town Centre (HF5) View pie chart 2 226 116 13 5 0 0 0 0 0
Hillingdon 1 - South Ruislip (HI1) View pie chart 216 134 9 0 0 0 0 0 0 0
London Hillingdon Oxford Avenue (HI3) View pie chart 38 289 36 2 1 0 0 0 0 0
London Hillingdon Harmondsworth (HIL1) View pie chart 267 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 58 237 56 7 4 1 1 1 1 0
Hounslow Boston Manor Park (HS010) View pie chart 170 89 12 0 1 1 0 0 0 0
Hounslow Cranford (HS2) View pie chart 15 195 90 5 3 4 0 0 0 0
Hounslow Chiswick (HS4) View pie chart 134 202 25 4 1 0 0 0 0 0
Hounslow Brentford (HS5) View pie chart 107 208 35 9 2 2 0 0 0 0
Hounslow Heston (HS6) View pie chart 137 189 21 3 0 0 0 0 0 1
Hounslow Hatton Cross (HS7) View pie chart 179 173 12 1 0 0 0 0 0 0
Hounslow Gunnersbury (HS8) View pie chart 114 229 23 0 0 0 0 0 0 0
Hounslow Feltham (HS9) View pie chart 164 182 16 4 0 0 0 0 0 0
Cromwell Road (KC2) View pie chart 251 115 0 0 0 0 0 0 0 0
Knightsbridge (KC3) View pie chart 143 150 37 6 0 0 0 0 0 0
Chelsea (KC4) View pie chart 146 206 6 0 0 0 0 0 0 0
Earls Court Road (KC5) View pie chart 62 243 34 5 2 0 0 0 0 0
Heathrow LHR2 (LHR2) View pie chart 151 202 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
Cam Road (NEW2) View pie chart 218 128 16 4 0 0 0 0 0 0
Wren Close (NEW3) View pie chart 173 166 25 1 1 0 0 0 0 0
Hillingdon Sipson (SIPS) View pie chart 314 50 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 258 100 7 0 0 0 0 0 0 0
Tower Hamlets - Millwall Park (TH001) View pie chart 14 209 111 19 9 0 0 0 0 0
Tower Hamlets - Victoria Park (TH002) View pie chart 215 123 25 2 1 0 0 0 0 0
Tower Hamlets - Blackwall (TH004) View pie chart 31 263 63 8 1 0 0 0 0 0
Tower Hamlets - Roadside (TH2P) View pie chart 212 74 18 3 0 0 1 0 0 0
Waltham Forest Dawlish Rd (WL1) View pie chart 229 115 17 3 0 0 0 0 0 0
Waltham Crooked Billet (WL4) View pie chart 34 261 61 6 1 0 1 0 0 0
Waltham Forest Leyton (WL5) View pie chart 213 135 16 2 0 0 0 0 0 0