Press release 24/2020 from 09.06.2020 | Last changed: 17.06.2020
Air in cities becoming cleaner: number of cities above NO2 limit down by half in 2019
… dioxide (NO2). The data show that only 25 cities exceeded the annual mean NO2 limit value of 40 micrograms NO2 per cubic metre of air (µg/m³), compared to 57 cities in … Overall, NO2 pollution in cities clearly continues to decline. On average, the NO2 values (annual mean values) at measuring stations close to traffic were about four …