The shutdown across the UK caused by the coronavirus outbreak has led to big drops in air pollution across major cities.
New data shows drops in tiny particle pollution of a third to a half in London, Birmingham, Bristol and Cardiff, falls of about quarter in Manchester, York and Belfast, with smaller declines in Glasgow and Newcastle. For nitrogen dioxide (NO2) pollution, the data also shows declines of a third to a half in London, Birmingham, Bristol and Cardiff, and drops of up to 20 per cent in the other cities.