Colloquium 2021

Air pollution control and photocatalysis - the current status

4 March 2021, 13:00 h - 16:30 h

The Corona crisis has overshadowed the nitrogen oxide problem in our cities in many areas. A clear effect from the lockdown is hardly discernible. Nevertheless, more and more cities are managing to slip below the nitrogen oxide limit value of 40 µg/m³ at the measuring stations with their diverse measures. But what are the prospects for the future?

Experts from the German Environment Agency, research and industry are considering the photocatalytic degradation of nitrogen oxides from various points of view. Are nitrogen oxides in city air still a problem today? Are there new and more effective materials? Doesn't the resulting nitrate create a new problem?

This year, for the first time, the Colloquium will be held as a half-day digital event. Take the opportunity to find out about the current status and ask the experts your questions.


Ute Dauert, Umweltbundesamt
Prof. Dr. med. Barbara Hoffmann, Institut für Arbeits-, Sozial- und Umweltmedizin, Uni Düsseldorf
Sebastian Czaja, TPA, Gesellschaft für Qualitätssicherung und Innovation GmbH
Dr. Thomas Koch, KRONOS INT. Inc.
Dr. Sven Hartmann, Industrieverband Agrar e.V.
Kim Zieseniß, Institut für Siedlungswasserwirtschaft und Abfalltechnik, Leibniz Universität Hannover

Detailed programme (German only)

Report on the event