Our predictions show that by 2021, there would still be 8 NO2 monitoring sites in Bristol that remain in breach of EU and UK limits if we don’t take action now. These predictions are based on NO2 concentrations averaged over a year (“annual mean”), and projected forward based on Defra’s future projections. They predict that without further action, Bristol would not meet legal limits until 2025.
Currently, some sites in Bristol experience NO2 levels of 90µg/m3, which is more than double the EU maximum limit of 40µg/m3.