§ Mr. Win GriffithsTo ask the Secretary of State for the Environment, Transport and the Regions what the(a) amount and (b) percentage was of (i) carbon dioxide and (ii) nitrogen oxide emissions in (1) 1970, (2) 1980, (3) 1990 and (4) the last year for which figures are available in the road transport sector. [135409]
§ Mr. HillOfficial estimates of the annual emissions of air pollutants and greenhouse gas emissions in the UK since 1970 are contained in my Department's National Atmospheric Emission Inventory. The table shows road transport's contribution to national emissions of carbon dioxide and nitrogen oxides by source category in 1970, 1980, 1990 and 1998. 1998 is the last year official data are currently available.
1970 1980 1990 1998 CO2 emissions from road transport Ktonnes1 16,299 21,221 29,776 31,529 Percentage of total UK emissions 8.8 12.9 18.7 21.2 NOx emissions from road transport Ktonnes 769 989 1,328 799 Percentage of total UK emissions 30.8 38.2 47.6 45.6 1 As carbon