LAQN Pollution Levels
Brent - Ikea (Level 2)
Hillingdon - South Ruislip (closed)
Ealing - Greenford (closed)
Brent - Harlesden (closed)
Ealing - Hanger Lane Gyratory (Level 1)
Hillingdon - Hillingdon Hospital (closed)
Ealing - Western Avenue (Level 2)
Ealing - Court Way (closed)
Ealing - Horn Lane (Level 1)
Ealing - Horn Lane TEOM (Level 1)
Ealing - Ealing Town Hall (closed)
Ealing - Southall (closed)
Ealing - Southall FDMS (closed)
Ealing - Acton Town Hall (closed)
Ealing - Acton Town Hall (Partisol) (closed)
Ealing - Acton Town Hall FDMS (closed)
Ealing - Southall Railway (closed)
Ealing - Acton Vale  (Level 1)
Hounslow and Ealing - Gunnersbury Avenue (closed)
Hillingdon - Keats Way (Level 1)
Hounslow - Brentford (closed)
Hounslow - Chiswick High Road (closed)
Hillingdon - Harlington (no data)
Hounslow - Brentford (closed)
Hounslow - Brentford (closed)
Hounslow - Cranford (closed)
Hillingdon - Oxford Avenue (closed)
Hounslow - Heston Road (closed)
Heathrow Airport (closed)
Hounslow - Hatton Cross (closed)
Richmond Upon Thames - Chertsey Road (closed)
Hounslow - Feltham (closed)
Kingston Upon Thames - Kingston Vale (Level 1)
Area Map

Air pollution levels for Friday 3 December 2021, 09:00-10:00GMT


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 the daily air quality index from LAQN pollution analysers. Not all analysers on the network are contacted every hour, so some sites may show 'no data'. Data have undergone automatic validity checks.

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Your selected monitoring site » Hillingdon - Keats Way
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Species Air Pollution Index/Value
Nitrogen Dioxide: View the Government's health advice for this level of air pollution
Ozone: 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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