TOP 10 – The most polluted environmental zones in Europe – Lyon ranks far ahead of Madrid and Wiesbaden in Germany
Berlin, 18.09.2019. The Green-Zones portal has determined in which European environmental zones the highest levels of nitrogen oxides (NOx), harmful to humans and the environment, occurred in 2019Nitrogen oxides (NOx) cause many harmful effects on the environment, especially on the bronchi of every human being. The NOx emissions are produced by road traffic (e.g. diesel engines) and coal, oil, gas and wood combustion plants.To protect human health from nitrogen dioxide, a 1-hour limit value of 200 µg/m3 has therefore been set throughout Europe. For the average of the year, a maximum