LAQN Pollution Levels
Thurrock - London Road (Purfleet) (Level 1)
Reigate and Banstead - Horley FIDAS (closed)
Elmbridge - Hampton Court Parade (closed)
Reigate and Banstead- Earlswood Depot (closed)
Windsor and Maidenhead - Aldebury Road (Level 1)
Thurrock - Dock Road Tilbury (Level 1)
Elmbridge - Walton High Street (closed)
Castle Point - Hadleigh (closed)
Reigate and Banstead - Horley (no data)
Dacorum - High Street Northchurch (closed)
Thurrock - Calcutta Road Tilbury (closed)
Reigate and Banstead - Horley South East (closed)
Sevenoaks - Sevenoaks Quarry (closed)
Brentwood - Brentwood Town Hall (closed)
Castle Point - Canvey Island (closed)
Thurrock - Stanford-le-Hope (no data)
Windsor and Maidenhead - Frascati Way (no data)
Thurrock - Purfleet (closed)
Thurrock - London Road (Grays) (no data)
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 2)
Reigate and Banstead - Reigate High St (closed)
Reigate and Banstead - A23 Hooley (closed)
Reigate and Banstead - Horley South (closed)
Reigate and Banstead - Poles Lane (closed)
London Air Quality NetworkHerts and Beds Air Pollution Monitoring Network

Peak air pollution levels for Sunday 17 March 2024


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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Your selected monitoring site » Kingston Upon Thames - Tolworth Broadway
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Species Air Pollution Index/Value
Nitrogen Dioxide: View the Government's health advice for this level of air pollution
PM2.5 Particulate: View the Government's health advice for this level of air pollution
What do these symbols mean?
This week's pollution graph
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Air pollution banding Value Accompanying health messages for at-risk groups and the general population
At-risk individuals * General population
Low 1-3 Enjoy your usual outdoor activities. Enjoy your usual outdoor activities.
Moderate 4-6 Adults and children with lung problems, and adults with heart problems, who experience symptoms, should consider reducing strenuous physical activity, particularly outdoors. Enjoy your usual outdoor activities.
High 7-9 Adults and children with lung problems, and adults with heart problems, should reduce strenuous physical exertion, particularly outdoors, and particularly if they experience symptoms. People with asthma may find they need to use their reliever inhaler more often. Older people should also reduce physical exertion. Anyone experiencing discomfort such as sore eyes, cough or sore throat should consider reducing activity, particularly outdoors.
Very High 10 Adults and children with lung problems, adults with heart problems, and older people, should avoid strenuous physical activity. People with asthma may find they need to use their reliever inhaler more often. Reduce physical exertion, particularly outdoors, especially if you experience symptoms such as cough or sore throat.
* Adults and children with heart or lung problems are at greater risk of symptoms. Follow your doctor's usual advice about exercising and managing your condition. It is possible that very sensitive individuals may experience health effects even on Low air pollution days.
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