65 cities exceed the NO2 limit value
![traffic jam in the city](https://www.umweltbundesamt.de/sites/default/files/styles/800w400h/public/medien/2546/bilder/stau_innenstadt_c_kara_fotolia_30929781_m_0.jpg?itok=V6B3FAID)
Source: Kara / Fotolia.com
The evaluation of 2017 NO2 monitoring data from around the country has been completed. The data reveals that 65 cities exceeded the limit value in effect across Europe of 40 micrograms per cubic metre (µg/m³) of air on a yearly average.
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