Smog-Destroying Pavement Coating Can Cut Pollution In Half

Let them eat smog! A pavement coating tested in the Netherlands could reduce air pollution almost half, claims a paper in the Journal of Hazardous Materials. Tested over the course of a year on a block in Hengelo, Netherlands, concrete blocks covered with a titanium oxide coating removed an average of 19 percent of pollution from NO and NO2 over the course of a day, up to 45 percent during ideal weather conditions--days with low humidity and high radiation. The photocatalytic paving stones are m...