In 2019 the annual average concentration of nitrogen dioxide (NO₂) for 10 urban roadside sites in NI was 31.4 μg/m3.
Source: Department of Agriculture, Environment and Rural Affairs
In 2019 the annual average concentration of nitrogen dioxide (NO₂) for 10 urban roadside sites in NI was 31.4 μg/m3.
Source: Department of Agriculture, Environment and Rural Affairs
Annual mean nitrogen dioxide concentration at monitored urban roadside locations