Number of days with moderate or higher pollution levels by area and year
Levels of individual pollutants are measured at various National Automated Monitoring Network sites across Wales. Concentrations of the pollutants were analysed to determine the number of days at each site on which the pollution was moderate or higher, i.e. when concentrations for at least one of the pollutants exceeded the National Air Quality Standards.
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Metadata
Envt0001: State of the Environment Report Indicators
Knowledge & Analytical Services, Welsh Government
Last updated: 25 Jul 2012
Was added to StatsWales: 24 Jul 2008
Next update: Jul 2013
Source: See notes against each indicator for source details
Contact: stats.environment@wales.gsi.gov.uk
The State of the Environment report presents data on the indicators that monitor progress against the Welsh Government's Environment Strategy. The full set of data, analysis, and notes on all of the indicators are available here through our StatsWales website. On StatsWales, the indicators are presented in a series of online reports which are also linked to data tables which users can then manipulate and/or download.
The statistics come from a range of sources in Wales and across the UK, which are updated at different times and intervals. The StatsWales reports will be updated twice a year in July and December and these updates will be highlighted through a pre-announced headline statistics published on our website. A statistical bulletin showing the status of each indicator will be produced annually in July to provide a snapshot of progess across all the indicators.
The contribution of data and information by organisations which monitor the environment is gratefully acknowledged. Although most indicators are currently measured, some further work is planned to develop the other indicators and in some cases to identify more appropriate indicators, as indicated in the StatsWales reports.
The symbol '-' is used where the data is less than half the final digit shown. This may or may not be a real zero.
Unless otherwise stated, the data in these tables and indicator reports are classed as National Statistics.
Was added to StatsWales: 24 Jul 2008
Next update: Jul 2013
Source: See notes against each indicator for source details
Contact: stats.environment@wales.gsi.gov.uk
The State of the Environment report presents data on the indicators that monitor progress against the Welsh Government's Environment Strategy. The full set of data, analysis, and notes on all of the indicators are available here through our StatsWales website. On StatsWales, the indicators are presented in a series of online reports which are also linked to data tables which users can then manipulate and/or download.
The statistics come from a range of sources in Wales and across the UK, which are updated at different times and intervals. The StatsWales reports will be updated twice a year in July and December and these updates will be highlighted through a pre-announced headline statistics published on our website. A statistical bulletin showing the status of each indicator will be produced annually in July to provide a snapshot of progess across all the indicators.
The contribution of data and information by organisations which monitor the environment is gratefully acknowledged. Although most indicators are currently measured, some further work is planned to develop the other indicators and in some cases to identify more appropriate indicators, as indicated in the StatsWales reports.
The symbol '-' is used where the data is less than half the final digit shown. This may or may not be a real zero.
Unless otherwise stated, the data in these tables and indicator reports are classed as National Statistics.
State of the Environment