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: 12/05/2020 - 11/05/2021

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 118 225 20 1 0 1 0 0 0 0
Barnet Chalgrove School (BN2) View pie chart 233 120 11 0 1 0 0 0 0 0
Camden - Euston Road (CD009) View pie chart 144 194 21 3 3 0 0 0 0 0
H&F Shepherd's Bush (HF4) View pie chart 48 197 49 9 3 1 1 0 0 0
H&F Hammersmith Town Centre (HF5) View pie chart 5 252 95 7 3 1 2 0 0 0
Hillingdon South Ruislip (HI1) View pie chart 167 175 21 0 1 0 0 0 0 0
Hillingdon Oxford Avenue (HI3) View pie chart 109 223 30 3 0 0 0 0 0 0
Hillingdon Harmondsworth (HIL1) View pie chart 260 92 13 0 0 0 0 0 0 0
Hillingdon Harmondsworth Osiris (HIL4) View pie chart 170 81 3 1 0 0 0 0 0 0
Hillingdon Hayes (HIL5) View pie chart 100 201 47 5 5 4 0 0 0 1
Hounslow Chiswick (HS4) View pie chart 154 183 23 2 3 0 0 0 0 0
Hounslow Brentford (HS5) View pie chart 46 262 46 6 2 2 0 1 0 0
Hounslow Heston (HS6) View pie chart 106 225 31 0 1 2 0 0 0 0
Hounslow Hatton Cross (HS7) View pie chart 186 159 15 4 1 0 0 0 0 0
Hounslow Gunnersbury (HS8) View pie chart 68 261 33 3 0 0 0 0 0 0
Hounslow Feltham (HS9) View pie chart 168 174 21 1 0 1 0 0 0 0
RBKC Cromwell Rd (KC2) View pie chart 312 52 0 0 0 0 0 0 0 0
RBKC Knightsbridge (KC3) View pie chart 267 95 3 0 0 0 0 0 0 0
RBKC Chelsea (KC4) View pie chart 224 139 2 0 0 0 0 0 0 0
RBKC Earls Court Road (KC5) View pie chart 59 250 46 5 2 1 0 0 0 0
Camden - Coopers Lane (KX004) View pie chart 245 42 7 1 0 0 0 0 0 0
Heathrow LHR2 (LHR2) View pie chart 278 72 11 1 0 0 0 0 0 0
Newham Cam Road (NEW2) View pie chart 175 124 13 4 3 0 0 1 0 0
Newham Wren Close (NEW3) View pie chart 160 143 12 8 0 1 0 0 1 0
Hillingdon Sipson (SIPS) View pie chart 329 16 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 284 72 8 1 0 0 0 0 0 0
Tower Hamlets - Millwall Park (TH001) View pie chart 21 226 93 15 6 4 0 0 0 0
Tower Hamlets - Victoria Park (TH002) View pie chart 177 159 19 5 3 1 1 0 0 0
Tower Hamlets - Blackwall (TH004) View pie chart 43 274 34 12 1 0 0 1 0 0
Tower Hamlets - Roadside (TH2P) View pie chart 250 76 12 4 3 1 1 0 0 0
Waltham Forest Dawlish Rd (WL1) View pie chart 203 140 19 2 0 0 0 1 0 0
Waltham Forest Crooked Billet (WL4) View pie chart 37 284 37 2 3 0 0 0 1 0
Waltham Forest Leyton (WL5) View pie chart 223 104 14 2 0 1 0 0 0 0