PARLIAMENTARY WRITTEN QUESTION
Air Pollution (27 April 2016)

To ask the Secretary of State for Environment, Food and Rural Affairs, whether she is reviewing (a) the number of air quality zones expected to comply with nitrogen dioxide limits by 2020 and (b) her Department's Air Quality Plan to take account of the results of the Government's diesel emissions testing programme.

Asked by:
Kerry McCarthy (Labour)

Our air quality plan is based on the best available data and our modelling uses the latest COPERT (Computer Programme to Calculate Emissions from Road Transport) factors to calculate emissions from diesel cars. These derive from a mixture of laboratory and on-road tests and are used by many other Member States across Europe. The ERMES (European Research Group on Mobile Emission Sources) network collates the emission measurement data which are used to update the emissions factors in the COPERT model.

Tackling air quality is a priority for this Government, which is why in May we will share the results of the testing programme with ERMES. This research will be used to inform their next update, due at the end of the year, ensuring EU-wide emission factors continue to focus on the latest data updated on the basis of real world testing.

Answered by:
Rory Stewart (Independent)
4 May 2016