References: T.F. Mebrahtu, R.R.C. McEachan, T.C. Yang, K. Crossley, R. Rashid, R. Hossain, I. Vaja, M. Bryant, Differences in public’s perception of air quality and acceptability of a clean air zone: A mixed-methods cross sectional study, Journal of Transport & Health, Volume 31, 2023, 101654, ISSN 2214-1405, https://doi.org/10.1016/j.jth.2023.101654.