2. Emissions projections

Road traffic is the dominant source of CO in urban areas in the UK, typically contributing more than 90% of total emissions (Buckingham et al, 1997 and 1998). Table 1 shows estimates and projections of urban road traffic CO emissions from the National Atmospheric Emission Inventory (NAEI). This 'business as usual' scenario has been used throughout the work presented here and represents our best estimate of the results of current national policies.

Table 1. Urban UK Road Transport Emission Projections of CO (Ktonnes per year)

year

1990

1991

1992

1993

1994

1995

1996

1997

1998

CO

2888

2838

2671

2507

2359

2170

2002

1842

1678

year

1999

2000

2001

2002

2003

2004

2005

2006

2007

CO

1531

1346

1222

1114

1020

943

884

781

727

Road traffic has been assumed to dominate ambient CO concentrations in urban areas in GB and the projections presented here have been calculated by assuming that there are no other sources.

 

 

Chapter 1         Chapter 3
Report and site prepared by the National Environmental Technology Centre, part of AEA Technology, on behalf of the UK Department of the Environment, Transport and the Regions