LAQN Pollution Levels
Thurrock - London Road (Purfleet) (Level 2)
Reigate and Banstead - Horley FIDAS (closed)
Elmbridge - Hampton Court Parade (closed)
Elmbridge - Walton High Street (closed)
Castle Point - Hadleigh (closed)
Dacorum - High Street Northchurch (closed)
Windsor and Maidenhead - Aldebury Road (Level 1)
Reigate and Banstead - Horley (Level 1)
Reigate and Banstead - Horley South East (Level 1)
Reigate and Banstead- Earlswood Depot (Level 1)
Thurrock - Dock Road Tilbury (Level 1)
Thurrock - Calcutta Road Tilbury (closed)
Sevenoaks - Sevenoaks Quarry (closed)
Brentwood - Brentwood Town Hall (closed)
Castle Point - Canvey Island (closed)
Thurrock - Stanford-le-Hope (Level 1)
Windsor and Maidenhead - Frascati Way (Level 1)
Thurrock - Purfleet (closed)
Thurrock - London Road (Grays) (Level 2)
Windsor and Maidenhead - Clarence Road (Level 1)
Windsor and Maidenhead - Ascot (closed)
Elmbridge - Bell Farm Hersham (closed)
Elmbridge - Esher High Street (closed)
Mole Valley - Leatherhead (closed)
Mole Valley - Lower Ashtead (closed)
Sevenoaks - Bat and Ball (Level 1)
Mole Valley - Dorking (closed)
Sevenoaks - Greatness Park (Level 1)
Reigate and Banstead - Reigate High St (closed)
Reigate and Banstead - A23 Hooley (Level 2)
Reigate and Banstead - Horley South (closed)
Reigate and Banstead - Poles Lane (Level 3)
London Air Quality NetworkHerts and Beds Air Pollution Monitoring Network

Peak air pollution levels for Monday 18 January 2021


How is the index calculated?

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Low (1-3) Moderate (4-6) High (7-9)
Low (1-3) Moderate (4-6) High (7-9)
Very High (10) No Data Closed
Very High (10) No Data Closed
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How the bands are calculated

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This map shows daily maximum index values for the date you have selected. Manually checked data from each operational monitoring site is included.

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