Ministers bow to pressure in agreeing to monitor tiny yet dangerous PM2.5 particles and combat pollution, local media reports
Country's enormous coal power sector must reduce noxious gas output from January 2012 as spending on carbon capture increases
Government says poor performance of European standards for cars will make it too difficult to achieve nationwide compliance with NO2 air quality limits
Judge rules case must be heard before the end of the year to determine whether government has failed to protect people from air pollution
Administrator Lisa Jackson admits the agency will miss target to float new utility-focused proposals by end of September
Capital's policies to improve air quality an "embarrassment" in run-up to 2012 Olympic Games
Surprise announcement confirms tightening of US smog rules will have to wait until 2013
But critics accuse Mayor of 'greenwashing' ahead of 2012 Olympic Games
Defra prepares response after green group launches judicial review accusing government of failing to protect people from air pollution