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: 13/08/2019 - 12/08/2020

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 153 197 16 0 0 0 0 0 0 0
Barnet Chalgrove School (BN2) View pie chart 229 129 8 0 0 0 0 0 0 0
Camden - Euston Road (CD009) View pie chart 76 253 34 1 2 0 0 0 0 0
H&F Shepherd's Bush (HF4) View pie chart 31 278 48 8 1 0 0 0 0 0
H&F Hammersmith Town Centre (HF5) View pie chart 5 227 115 10 5 0 0 0 0 0
Hillingdon South Ruislip (HI1) View pie chart 213 135 11 0 0 0 0 0 0 0
Hillingdon Oxford Avenue (HI3) View pie chart 49 278 36 2 1 0 0 0 0 0
Hillingdon Harmondsworth (HIL1) View pie chart 266 94 6 0 0 0 0 0 0 0
Hillingdon Harmondsworth Osiris (HIL4) View pie chart 156 53 1 0 0 0 0 0 0 0
Hillingdon Hayes (HIL5) View pie chart 71 221 55 7 5 2 1 1 1 0
Hounslow Boston Manor Park (HS010) View pie chart 130 70 6 0 0 0 0 0 0 0
Hounslow Cranford (HS2) View pie chart 13 154 69 0 1 3 0 0 0 0
Hounslow Chiswick (HS4) View pie chart 123 206 31 5 1 0 0 0 0 0
Hounslow Brentford (HS5) View pie chart 93 223 37 9 2 2 0 0 0 0
Hounslow Heston (HS6) View pie chart 137 182 28 2 0 0 0 0 0 1
Hounslow Hatton Cross (HS7) View pie chart 178 171 15 1 0 0 0 0 0 0
Hounslow Gunnersbury (HS8) View pie chart 90 246 29 1 0 0 0 0 0 0
Hounslow Feltham (HS9) View pie chart 168 177 20 1 0 0 0 0 0 0
RBKC Cromwell Rd (KC2) View pie chart 252 114 0 0 0 0 0 0 0 0
RBKC Knightsbridge (KC3) View pie chart 181 135 31 5 0 0 0 0 0 0
RBKC Chelsea (KC4) View pie chart 172 179 7 0 0 0 0 0 0 0
RBKC Earls Court Road (KC5) View pie chart 57 260 42 5 2 0 0 0 0 0
Camden - Coopers Lane (KX004) View pie chart 262 57 8 0 0 0 0 0 0 0
Heathrow LHR2 (LHR2) View pie chart 174 179 12 1 0 0 0 0 0 0
Heathrow Bath Road (LHRBR) View pie chart 76 98 3 0 0 0 0 0 0 0
Newham Cam Road (NEW2) View pie chart 221 121 19 4 1 0 0 0 0 0
Newham Wren Close (NEW3) View pie chart 160 171 31 2 1 1 0 0 0 0
Hillingdon Sipson (SIPS) View pie chart 316 47 0 0 0 0 0 0 0 0
Heathrow Green Gates (T55) View pie chart 257 100 8 0 0 0 0 0 0 0
Tower Hamlets - Millwall Park (TH001) View pie chart 16 217 105 12 8 4 0 0 0 0
Tower Hamlets - Victoria Park (TH002) View pie chart 216 117 29 3 1 0 0 0 0 0
Tower Hamlets - Blackwall (TH004) View pie chart 38 252 61 14 1 0 0 0 0 0
Tower Hamlets - Roadside (TH2P) View pie chart 222 83 20 3 0 0 1 0 0 0
Waltham Forest Dawlish Rd (WL1) View pie chart 222 119 19 5 0 1 0 0 0 0
Waltham Forest Crooked Billet (WL4) View pie chart 66 230 60 6 1 0 1 0 0 0
Waltham Forest Leyton (WL5) View pie chart 216 130 18 2 0 0 0 0 0 0