These pages present a series of graphs showing how air quality in Wales has changed in recent years. The statistics shown in these graphs are based upon measurements made at automatic monitoring sites in Wales. Part of the Government's plans to ensure a better quality of life for all in the UK include a series of Indicators of Sustainable Development. These include a range of indicators based on air quality:
Further information on the air quality indicators can be found on the following Defra web page:The Headline Air Quality Indicator . We present a series of graphs which have been calculated based on the latest figures up to 2010 for Air Quality in Wales.
Click on a section on the left to view information and graphs about the different trends.