London Mayor Sadiq Khan has made it one of his missions to curb pollution and improve air quality in the capital. Data plays an important role, and as part of a new project, two Google Street View cars will begin pulling double duty as mobile air quality monitors next month. The vehicles have been fitted with sensors that will measure pollutant levels, as well as temperature, humidity and pressure, once every 30 meters as they wind their way around London. This data will be used to complement readings from another 100 static sensors dotted around the city. London has several veteran sensor networks and is no stranger to shorter-term monitoring projects, but this new initiative is said to be on a different scale, capable of painting a near real-time, "hyperlocal" picture of air quality across the capital.