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Nitrogen Dioxide Emissions

May 16, 2006

Question written on 16/05/2006

To ask the Secretary of State for Environment, Food and Rural Affairs if she will make a statement on air quality standards in central London, with particular reference to nitrogen oxide emissions.

Answered by Ben Bradshaw

The national Air Quality Strategy, published in 2000, sets a one hour mean air quality objective for nitrogen dioxide of 200 micrograms per cubic metre not to be exceeded more than 18 times per year and an annual mean of 40 micrograms per cubic metre, both to be achieved by 31 December 2005. These objectives are to be achieved sooner than the equivalent EU limit values which have to be met by 2010.The Greater London Authority Act 1999 gave the Mayor responsibility for improving air quality in London. The Mayor published his Air Quality Strategy for London in September 2002, setting out his proposals for implementation of the policies in the national Air Quality Strategy and achievement of the objectives prescribed in regulations. London local authorities have to take account of the Mayor’s Strategy when carrying out their local air quality management duties.Under Part IV of the Environment Act 1995, currently 30 out of the 33 London local authorities have declared air quality management areas in respect of nitrogen dioxide mainly relating to road transport emissions.