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28 April 2011

London’s traffic levy not helping

London's congestion charging scheme, which charges motorists for entering central London to try to cut traffic volume, has so far shown little evidence of improving air quality.

London's congestion charging scheme (CCS), which charges motorists for entering central London to try to cut traffic volume, has so far shown little evidence of improving air quality, scientists said.

Frank Kelly from the environmental research group at King's College, who led the study, analysed a variety of emissions using a range of exposure modelling techniques. His group also studied air monitoring data, and used a newly developed test which assesses the oxidative potential of particles collected on filters at urban background and roadside monitors.

 
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