| The Environment Act (1995) required the UK Government and the devolved administrations for Scotland and Wales to produce a national air quality strategy containing standards, objectives and measures for improving ambient air quality and to keep these policies under review. There is equivalent legislation in Northern Ireland. The aim of the strategy is to ensure that everyone can enjoy a level of ambient air quality in public places which poses no significant risk to health or quality of life. Air quality in the UK has generally continued to improve since 1997 when the first Air Quality Strategy was adopted. This was replaced by the Air Quality Strategy for England, Scotland, Wales and Northern Ireland published in January 2000. It established the framework for achieving further improvements in ambient air quality in the UK to 2003 and beyond. The strategy identified actions at local, national and international level to improve air quality. It was followed by an Addendum in February 2003 which tightened several of the objectives and introduced a new one. The latest air quality strategy (2007) introduces a new ozone objective to protect ecosystems, in line with the EU target value set out in the Third Daughter Directive. The 8 main pollutants of concern identified in the current air quality objectives National air quality objectives and European Directive limit and target values for the protection of human health
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