Google Street View cars measure and map air pollution

After having mapped the all world, Street View cars have now been upgraded to detect pollution, with the fitment of sensors that measure nitric oxide, nitric dioxide and black carbon. Google has used them to map pollution levels in Oakland, California. In a year, its vehicles have completed over 14,000 miles of driving. The results showed that residents living at intersections, or crossroads, were most at risk of suffering air pollution.