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: 25/02/2020 - 24/02/2021

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
Barnet Tally Ho (BN1) View pie chart 115 231 19 1 0 0 0 0 0 0
Barnet Chalgrove School (BN2) View pie chart 236 121 8 1 0 0 0 0 0 0
Camden - Euston Road (CD009) View pie chart 144 194 23 2 3 0 0 0 0 0
H&F Shepherd's Bush (HF4) View pie chart 40 205 53 7 3 0 1 0 0 0
H&F Hammersmith Town Centre (HF5) View pie chart 4 254 96 7 3 1 1 0 0 0
Hillingdon South Ruislip (HI1) View pie chart 188 163 13 1 0 0 0 0 0 0
Hillingdon Oxford Avenue (HI3) View pie chart 90 236 33 5 1 0 0 0 0 0
Hillingdon Harmondsworth (HIL1) View pie chart 261 92 13 0 0 0 0 0 0 0
Hillingdon Harmondsworth Osiris (HIL4) View pie chart 146 56 0 1 0 0 0 0 0 0
Hillingdon Hayes (HIL5) View pie chart 99 206 45 2 6 5 1 0 0 0
Hounslow Boston Manor Park (HS010) View pie chart 7 3 0 0 0 0 0 0 0 0
Hounslow Cranford (HS2) View pie chart 2 13 29 0 0 0 0 0 0 0
Hounslow Chiswick (HS4) View pie chart 140 195 25 3 3 0 0 0 0 0
Hounslow Brentford (HS5) View pie chart 64 248 44 6 2 1 1 0 0 0
Hounslow Heston (HS6) View pie chart 88 225 32 0 3 0 0 0 0 0
Hounslow Hatton Cross (HS7) View pie chart 191 157 14 3 1 0 0 0 0 0
Hounslow Gunnersbury (HS8) View pie chart 94 244 26 2 0 0 0 0 0 0
Hounslow Feltham (HS9) View pie chart 158 177 25 5 1 0 0 0 0 0
RBKC Cromwell Rd (KC2) View pie chart 308 58 0 0 0 0 0 0 0 0
RBKC Knightsbridge (KC3) View pie chart 265 97 4 0 0 0 0 0 0 0
RBKC Chelsea (KC4) View pie chart 221 142 3 0 0 0 0 0 0 0
RBKC Earls Court Road (KC5) View pie chart 62 252 43 4 3 0 0 0 0 0
Camden - Coopers Lane (KX004) View pie chart 247 46 8 1 0 0 0 0 0 0
Heathrow LHR2 (LHR2) View pie chart 273 79 10 1 0 0 0 0 0 0
Heathrow Bath Road (LHRBR) View pie chart 11 17 0 0 0 0 0 0 0 0
Newham Cam Road (NEW2) View pie chart 204 134 16 5 2 0 0 1 0 0
Newham Wren Close (NEW3) View pie chart 169 169 19 6 1 1 0 0 1 0
Hillingdon Sipson (SIPS) View pie chart 330 15 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 286 69 11 0 0 0 0 0 0 0
Tower Hamlets - Millwall Park (TH001) View pie chart 12 224 101 14 5 6 0 0 0 0
Tower Hamlets - Victoria Park (TH002) View pie chart 178 156 24 5 1 1 1 0 0 0
Tower Hamlets - Blackwall (TH004) View pie chart 42 252 56 13 2 0 0 1 0 0
Tower Hamlets - Roadside (TH2P) View pie chart 244 80 13 5 2 0 2 0 0 0
Waltham Forest Dawlish Rd (WL1) View pie chart 208 136 17 4 0 0 0 1 0 0
Waltham Forest Crooked Billet (WL4) View pie chart 58 268 36 1 0 1 0 0 0 0
Waltham Forest Leyton (WL5) View pie chart 215 111 15 3 0 1 0 0 0 0