The coronavirus lockdown has led to big drops in air pollution across the country’s major cities....

Levels of toxic pollutants were likely to fall even further.... as traffic remained off the roads but prevailing westerly winds from the Atlantic returned.

The 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 10-20% in the other cities.

https://www.theguardian.com/politics...19-latest-news