Air pollution has remained at lower levels in UK towns and cities despite a return to near-normal traffic levels after the easing of coronavirus restrictions, according to research.
Analysis of data from more than 100 urban roadside locations shows nitrogen dioxide pollution levels were 30% below normal at the end of June, despite HGV traffic being back at 95% of normal levels, vans at 90% and cars at 75%.
Scientists think the small reduction in traffic that remains is enough to cut congestion on the roads and that this has an outsized impact in reducing dirty air. People may be staggering their commutes to work, which would also cut congestion, they said …read more
