It sounds almost too good to be true, but an Italian cement manufacturer has managed to develop a pollution-degrading concrete. The technology, dubbed “TX Active,” breaks down air pollutants such as carbon monoxide, nitrogen oxide, benzene, and others through a natural chemical process called photocatalysis.

In areas where streets have been repaved with the compound, nitric oxides have been measured at 45-60% below normal. And in addition to being good for the ambient air, TX Active building facades stay gleaming white longer — since the compound breaks down pollutants, it also prevents grimy buildup.