Number of air pollution days in rural and urban sites in the UK 2023, by pollutant
In 2023, the average number of days when levels of ozone were moderate or higher at rural monitoring sites in the United Kingdom was 18.7. By comparison, ozone caused on average 14 days of moderate or higher pollution at urban locations. On average, there were 8.7 moderate or higher air pollution days in the UK at urban sites in 2023, and 20 at rural sites.