Welsh Government – Annual data on NO2 concentrations for the motorway and trunk road: 2018 to 2019
Welsh Government – Annual data on NO2 concentrations for the motorway and trunk road: 2018 to 2019
This report provides the data for the calendar year 2018 and 2019, with a narrative of the ongoing issues facing the Welsh Government in relation to the five sites exceeding limit levels along with ways forward to help lower the NO2 levels further.