For the latest news from in and around Wigan sign up to the MyWigan newsletter hereDaily charges for the most polluting vans, buses and taxis which are due to be introduced next year are 'not a congestion charge' councillors have been told.The Clean Air Zone which will affect all roads in Greater Manchester, except for motorways and other roads managed by Highways England, is expected to come into force in Spring 2022, a scrutiny committee in Wigan was told.Vehicles which do not meet emission