Levels of particulate matter, which usually come from vehicles burning fuel, as well as nitrogen dioxide from vehicle exhausts, have been dropping in London, Paris, Rome, Milan and many other major cities in Europe.
According to data retrieved from the London Air Quality Network and analyzed by the National Center for Atmospheric Science, London’s levels of ultra-fine particulate matter – or PM2.5 – and nitrogen dioxide have fallen by around half of what is usually recorded since its peak in mid-February.
Descartes Labs, a geospatial imagery analytics firm, provided satellite images that compared the heavy air pollution over London in 2019 with the lower air pollution in 2020....<<<Read The Full Article Here>>>...