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: 21/09/2020 - 20/09/2021

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 153 194 17 0 0 1 0 0 0 0
Barnet Chalgrove School (BN2) View pie chart 239 112 9 0 1 0 0 0 0 0
Camden - Euston Road (CD009) View pie chart 126 208 23 5 3 0 0 0 0 0
Camden High Street (CD010) View pie chart 114 3 0 0 0 0 0 0 0 0
H&F Shepherd's Bush (HF4) View pie chart 45 189 59 1 9 2 1 1 0 1
H&F Hammersmith Town Centre (HF5) View pie chart 6 250 96 7 3 1 2 0 0 0
Haringey Wood Green (HG005) View pie chart 61 70 8 0 0 0 0 0 0 0
Hillingdon South Ruislip (HI1) View pie chart 180 165 19 0 1 0 0 0 0 0
Hillingdon Oxford Avenue (HI3) View pie chart 129 208 27 1 0 0 0 0 0 0
Hillingdon Harmondsworth (HIL1) View pie chart 267 90 8 0 0 0 0 0 0 0
Hillingdon Harmondsworth Osiris (HIL4) View pie chart 240 102 3 1 0 0 0 0 0 0
Hillingdon Hayes (HIL5) View pie chart 95 195 56 7 7 4 0 0 0 1
Hounslow Chiswick (HS4) View pie chart 187 157 16 2 3 0 0 0 0 0
Hounslow Brentford (HS5) View pie chart 90 235 33 4 2 0 0 1 0 0
Hounslow Heston (HS6) View pie chart 152 188 17 1 0 2 0 0 0 0
Hounslow Hatton Cross (HS7) View pie chart 185 163 13 3 1 0 0 0 0 0
Hounslow Gunnersbury (HS8) View pie chart 79 254 30 1 1 0 0 0 0 0
Hounslow Feltham (HS9) View pie chart 202 147 13 2 0 1 0 0 0 0
RBKC Cromwell Rd (KC2) View pie chart 272 78 5 1 0 0 0 0 0 0
RBKC Knightsbridge (KC3) View pie chart 260 102 3 0 0 0 0 0 0 0
RBKC Chelsea (KC4) View pie chart 196 169 0 0 0 0 0 0 0 0
RBKC Earls Court Road (KC5) View pie chart 45 247 52 5 1 1 0 0 0 0
Camden - Coopers Lane (KX004) View pie chart 173 37 8 2 0 0 0 0 0 0
Heathrow LHR2 (LHR2) View pie chart 265 82 10 1 0 0 0 0 0 0
Heathrow Bath Road (LHRBR) View pie chart 65 22 2 0 0 0 0 0 0 0
Newham Cam Road (NEW2) View pie chart 91 82 8 4 2 0 0 1 0 0
Newham Wren Close (NEW3) View pie chart 93 86 6 6 0 1 0 0 1 0
Hillingdon Sipson (SIPS) View pie chart 347 15 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 279 77 8 1 0 0 0 0 0 0
Tower Hamlets - Millwall Park (TH001) View pie chart 17 226 110 7 4 1 0 0 0 0
Tower Hamlets - Victoria Park (TH002) View pie chart 179 153 18 4 3 1 1 0 0 0
Tower Hamlets - Blackwall (TH004) View pie chart 45 289 24 5 1 0 0 1 0 0
Tower Hamlets - Roadside (TH2P) View pie chart 215 111 12 4 2 1 1 0 0 0
Kensington High Street 1 (VS007) View pie chart 28 63 22 2 0 0 0 0 0 0
Sedding Street (VS008) View pie chart 95 20 1 0 0 0 0 0 0 0
Burnaby Street (VS009) View pie chart 31 14 3 0 0 0 0 0 0 0
Kensington High Street 2 (VS010) View pie chart 62 50 4 0 0 0 0 0 0 0
Waltham Forest Dawlish Rd (WL1) View pie chart 235 114 14 1 0 0 0 1 0 0
Waltham Forest Crooked Billet (WL4) View pie chart 58 269 32 2 3 0 0 0 1 0
Waltham Forest Leyton (WL5) View pie chart 232 96 13 2 0 1 0 0 0 0