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Table 9 Reduction in pollutant emissions in the zone

From: Overcoming the barriers to implementing urban road user charging schemes

City

% change NOx

% change PM10

Notes

London

−13%

−15%

Change between 2002 and 2003 [74]

Milan

−17%

−18%

Before and after the scheme implementation [7]

Rome

–

−11%

Change in mean values between 2001 and 2004. [Unpublished Internal Report]

Stockholm

−8%

−13%

Following the trial period, Jan–July 2006, Inner City [68].