Carbon Emissions

Department for Environment, Food and Rural Affairs written question – answered on 10th April 2018.

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Photo of David Drew David Drew Shadow Minister (Environment, Food and Rural Affairs)

To ask the Secretary of State for Environment, Food and Rural Affairs, what the legal limit is for emissions of (a) PM 0.1 and (b) PM 1 particles; and what guidance his Department has issued on those emissions.

Photo of Therese Coffey Therese Coffey The Parliamentary Under-Secretary of State for Environment, Food and Rural Affairs

There is no legal limit for PM0.1 and PM 1 particles, However, new Euro standards for diesel vehicles limit emissions for both the total particle mass as well as the number of particles emitted per kilometre. Particle number is a common measurement technique for assessment of smaller sized particles such as PM0.1 and PM1.

In addition, our National Atmospheric Emissions Inventory (NAEI) provides estimates of emissions from a wide range of man-made sources and includes estimates of PM0.1, PM1 as well as PM2.5 and PM10. The NAEI is updated on an annual basis and is publically available at:

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