LAQN Pollution Levels
Enfield - Derby Road (Level 1)
Waltham Forest - Crooked Billet (closed)
Haringey - Haringey Town Hall (Level 2)
Redbridge - South Woodford (closed)
Redbridge - Fullwell Cross (closed)
Redbridge - Gardner Close (Level 1)
Havering - Romford (Level 1)
Redbridge - Perth Terrace (Level 2)
Barking and Dagenham - Rush Green (Level 1)
Waltham Forest - Mobile (closed)
Waltham Forest - Dawlish Road (closed)
Redbridge - Ilford Broadway (closed)
Hackney - Clapton (closed)
Waltham Forest - Leyton (closed)
Barking and Dagenham - North Street (closed)
Tower Hamlets - Victoria Park (Level 1)
Newham - Cam Road (closed)
Barking and Dagenham - Scrattons Farm (no data)
Tower Hamlets - Bethnal Green (closed)
Hackney - Old Street (Level 1)
Tower Hamlets - Mile End Road (Level 1)
Tower Hamlets - Blackwall (Level 1)
Newham - Tant Avenue (closed)
Newham - Wren Close (closed)
City of London - Sir John Cass School (Level 1)
Bexley - Thamesmead (no data)
Tower Hamlets - Poplar (Level 1)
Bexley - Belvedere West (no data)
Bexley - Belvedere West FDMS (no data)
Area Map

Air pollution levels for Friday 24 May 2013, 03:00-04:00BST


How is the index calculated?   Switch to Google Map

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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
Select type of pollution level to view
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.

Your selected monitoring site » Camden - St Martins College (NOX 1)
Your selected bulletin type » hourly
Species Air Pollution Index/Value
Site closed on 13 Jul 2010: View the Government's health advice for this level of air pollution
What do these symbols mean?

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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