On Thursday 29 August, the European Environment Agency (EEA) updated its European city air quality viewer. The tool ranks 375 cities on the basis of average levels of fine particles (PM2.5) - three out of four Europeans live in urban areas.
Only 13 European cities fall within the limits set by the World Health Organization (WHO), i.e. below an average of 5 micrograms of fine particles per cubic metre of air. These include four Nordic capitals, notes the EEA: Reykjavik, Tallinn,...