Press release 5/2015 from 09.02.2015 | Last changed: 23.01.2017
Air quality 2014: Nitrogen dioxide now ranks as pollutant Nr. 1
… Organization (WHO) has confirmed this time and time again." Press release No. 5/2015 | 09.02.2015 In 2014 only ten percent of measuring stations located near traffic did not … increase significantly when additional data are taken up in the statistics in May 2015 from 124 measuring stations where technical difficulties have prevented …