HC Deb 28 November 1989 vol 162 cc166-7W
Mr. Sedgemore

To ask the Secretary of State for the Environment what is or was the average total daily weight of carbon monoxides and nitrogen oxides emitted into the air by road traffic in Greater London in 1987 and 1988; and what estimates are available for 1989, 1990 and 2000.

Mr. Trippier

[holding answer 24 November 1989]: Warren Spring laboratory has provided the following estimates assuming the London annual total emission from road transport to he 7.55 per cent. of the United Kingdom total, and daily emissions to be 0.274 per cent. of the annual total (1/365). Average daily emissions 1987:

  • CO = 925 tonnes
  • NOx = 213 tonnes
Corresponding data are not yet available for 1988 and 1989. The Department is currently revising its projections of future vehicle emissions in the light of the recent EC agreement on tighter emission standards and other developments, and I regret therefore that the information sought for 1990 and 2000 is also not presently available.