The consortium, which includes the Lemitor Ochrona Środowiska company, the Jan Kochanowski University in Kielce and the Institute of Applied Research of the Warsaw University of Technology, started air quality measurements at the longest road tunnel in Poland commissioned on December 20 in Warsaw.

The project, worth approximately PLN 3.8 million, is providing for research on a 4.6-kilometer section along the S2 expressway. Its part is the longest road tunnel in Poland, which was built in the Ursynów, district of Warsaw. The facility is 2,335 meters long and is one of the most important elements of the Southern Bypass of Warsaw.

The contract provides for testing the concentration of nitrogen dioxide, PM 2.5 and PM 10 particulate matter, benzene and meteorological conditions directly at the outlet grilles of the exhaust launchers at both exits from the tunnel. The research is conducted around the clock. The first results will be obtained by the General Directorate National Roads and Motorways about four months after the tunnel is put into operation. The end of work, along with full results, is scheduled for the second quarter of 2023.