Dutch Town Lays Air-Purifying Concrete

eldavojohn writes "In an effort to combat air pollution, a Dutch town has paved some of its streets with air-purifying concrete. It contains a titanium dioxide-based additive that utilizes sunlight to turn car exhaust into harmless nitrates. It was shown to do this in a lab and now the scientists are interested in just how much this will affect the air quality around the road. They will sample the air quality by a normal road and by this newly paved one."

Comments

And of course...

[CptNerd]

Of course, they will discover that the "harmless" nitrates will cause rivers to choke on algae, due to the fertilizing effect of the nitrate runoff in the rain.