Clean Air Zone sees city centre air quality improve in its first year
Air quality in central Birmingham has improved since the Clean Air Zone was implemented a year ago and has seen a significant fall in the percentage of most polluting vehicles entering the city centre. This reduction in the most polluting traffic – falling from 18.7 per cent on 1 June 2021 to 9.2 per cent in April 2022 – has contributed to an overall reduction in the levels of nitrogen dioxide by 13 per cent in the first six months of the scheme.