Poznań is another city where Skanska will use a pavement reducing smog that is harmful to health. Almost 4,000 sq m will be built in the Nowy Rynek investment. sidewalk with the so-called green concrete. Thanks to the sun's rays on its surface, NOx particles that are hazardous to humans are reduced, which are broken down into neutral nitrogen compounds and discharged into the soil together with rainwater. The developer has already used this solution in its projects in Warsaw, Kraków and Gdańsk.