Science, Maths & Technology
Transport and Sustainability
...human-made air pollution in England alone (PHE, 2019). NOx and particulate pollution are intensely localised around main roads. This can clearly be seen when monitored and then plotted or mapped on to the traffic grids of major cities. Figure 2 shows estimated concentrations of a single pollutant, NO2, in London in 2019, extrapolated from measurements at a number of...