2003
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2002
December
November
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July
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April
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2001
December
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2000
December
November
October
September

The Atmosphere, Climate & Environment Information Programme, supported by the Department of Environment, Food and Rural Affairs (DEFRA) provides monthly summaries of air quality in nine urban areas of Britain, from the following automatic monitoring stations: Birmingham Centre, Cardiff Centre, Edinburgh Centre, Leeds Centre, London Bloomsbury, Manchester Piccadilly, Newcastle Centre, Norwich Centre, Plymouth Centre.

Summaries are provided in the form of graphs (in PDF format) and data (CSV format for use in Excel), showing the daily average concentrations of 5 pollutants: carbon monoxide, nitrogen dioxide, ozone, particulate matter and sulphur dioxide. A monthly summary of averages and exceedence of standards is also provided (in PDF format). If you do not have Adobe Acrobat Reader installed on your computer, please visit the Adobe website to download the free software.

The air quality data is provided by the National Air Quality Archive, courtesy of NETCEN:

NETCEN ratify their air quality data only twice each year. Since these summaries are added to the website every month, the data should be regarded as provisional only. Ratified raw data for earlier months can be obtained through NETCEN.