In the dispute relating to limit values for air pollution by Diesel exhaust gases, the National Academy of Sciences Leopoldina today in Berlin, an opinion. Experts have examined, among other things, the methodological quality of studies on which limit values are based.

since 2010, mandatory EU limits for nitrogen dioxide (NO2) of 40 micrograms per cubic metre of air was in the criticism – it is the basis for court-imposed Diesel-driving bans in major cities. A group of pulmonary doctors, had launched the debate by questioning the health Benefits of the limits. Conversely, there was broad opposition of German and international experts.

at the end of January had announced the Federal government to ask the Leopoldina as a National Academy of Sciences, a clarification. A working group comprised of 20 professors from twelve different specialist areas. It was planned, a comparison with limit values and health regulations in selected other countries.

The Leopoldina, located in Halle, Saxony-Anhalt, developed in the framework of a “science-based policy advice” opinions, which also include options for the policy.

dpa