London mayoral election: How has Sadiq Khan's Ulez scheme and other transport policies helped the capital?
Briefly

TfL's target of reducing nitrogen dioxide by 60 to 70% between 2016 and 2040 has seen a 58% reduction in central London and 47% reduction in inner London by 2022, showcasing the positive impact of the measures implemented.
Read at www.standard.co.uk
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