Table 5: Correction factors to estimate primary combustion PM10 concentration in 2004
Year Correction factor to be applied
1996 0.651
1997 0.729
1998 0.774
1999 0.821
2000 0.871
2001 0.900
2002 0.934
2003 0.968
2004 1.000

Example: If the predicted primary combustion PM10 concentration in 1998 were 4 mg/m3, this would be estimated to fall to 4 x 0.774 = 3.1 mg/m3 by 2004.


Report prepared by Stanger Science and Environment
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