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: 25/10/2019 - 24/10/2020

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
Barnet Tally Ho (BN1) View pie chart 116 235 15 0 0 0 0 0 0 0
Barnet Chalgrove School (BN2) View pie chart 214 146 6 0 0 0 0 0 0 0
Camden - Euston Road (CD009) View pie chart 116 217 31 1 1 0 0 0 0 0
H&F Shepherd's Bush (HF4) View pie chart 32 242 57 6 1 0 0 0 0 0
H&F Hammersmith Town Centre (HF5) View pie chart 4 246 105 8 3 0 0 0 0 0
Hillingdon South Ruislip (HI1) View pie chart 196 154 8 0 0 0 0 0 0 0
Hillingdon Oxford Avenue (HI3) View pie chart 57 266 38 4 1 0 0 0 0 0
Hillingdon Harmondsworth (HIL1) View pie chart 253 104 9 0 0 0 0 0 0 0
Hillingdon Harmondsworth Osiris (HIL4) View pie chart 163 49 1 0 0 0 0 0 0 0
Hillingdon Hayes (HIL5) View pie chart 77 214 56 7 6 2 1 0 1 0
Hounslow Boston Manor Park (HS010) View pie chart 77 52 4 0 0 0 0 0 0 0
Hounslow Cranford (HS2) View pie chart 11 102 54 0 0 0 0 0 0 0
Hounslow Chiswick (HS4) View pie chart 136 196 28 5 1 0 0 0 0 0
Hounslow Brentford (HS5) View pie chart 80 234 39 9 2 2 0 0 0 0
Hounslow Heston (HS6) View pie chart 110 205 30 2 0 0 0 0 0 1
Hounslow Hatton Cross (HS7) View pie chart 181 168 14 2 0 0 0 0 0 0
Hounslow Gunnersbury (HS8) View pie chart 85 248 31 2 0 0 0 0 0 0
Hounslow Feltham (HS9) View pie chart 142 195 24 4 1 0 0 0 0 0
RBKC Cromwell Rd (KC2) View pie chart 261 105 0 0 0 0 0 0 0 0
RBKC Knightsbridge (KC3) View pie chart 202 131 28 5 0 0 0 0 0 0
RBKC Chelsea (KC4) View pie chart 184 174 4 0 0 0 0 0 0 0
RBKC Earls Court Road (KC5) View pie chart 60 258 40 5 3 0 0 0 0 0
Camden - Coopers Lane (KX004) View pie chart 253 53 7 0 0 0 0 0 0 0
Heathrow LHR2 (LHR2) View pie chart 200 157 8 1 0 0 0 0 0 0
Heathrow Bath Road (LHRBR) View pie chart 58 102 3 0 0 0 0 0 0 0
Newham Cam Road (NEW2) View pie chart 208 130 21 5 2 0 0 0 0 0
Newham Wren Close (NEW3) View pie chart 146 186 29 3 1 1 0 0 0 0
Hillingdon Sipson (SIPS) View pie chart 317 36 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 266 92 8 0 0 0 0 0 0 0
Tower Hamlets - Millwall Park (TH001) View pie chart 17 215 107 14 4 5 0 0 0 0
Tower Hamlets - Victoria Park (TH002) View pie chart 197 137 28 3 1 0 0 0 0 0
Tower Hamlets - Blackwall (TH004) View pie chart 33 256 61 15 1 0 0 0 0 0
Tower Hamlets - Roadside (TH2P) View pie chart 246 82 21 3 1 0 1 0 0 0
Waltham Forest Dawlish Rd (WL1) View pie chart 197 144 20 3 2 0 0 0 0 0
Waltham Forest Crooked Billet (WL4) View pie chart 66 232 55 6 1 0 1 0 0 0
Waltham Forest Leyton (WL5) View pie chart 217 130 17 2 0 0 0 0 0 0