Statistics on deaths from air pollution are not recorded.
Calculations are carried out by the National Environment and Technology Centre (Netcen), who act as air quality consultants to Defra and the devolved administrations. Netcen carry out a range of assessments and provide statistics on deaths brought forward due to air pollution in the UK using Committee of Medical Effects of Air Pollutants (COMEAP) methodology.
This information is not readily available and figures would only extend back to 1996 for a range of technical reasons. I will write to the hon. Lady when figures are available and place a copy of the figures in the Library.