Glasgow Chamber of Commerce's chief executive has raised concerns about the implementation of Low Emission Zones (LEZs), suggesting the policy may make it less attractive to visit Scotland's city centres.
LEZs are formally beginning in four Scottish cities, although enforcement will not begin for at least a year. Glasgow, Edinburgh, Aberdeen and Dundee are introducing them in order to improve air quality, with many older vehicles set to be banned.
Grace periods are now in place for the four cities, with enforcement due to begin on different dates.