Sensors for polluting vehicles have helped improve air quality in Hong Kong

To improve air quality, cities could install roadside sensors to detect the presence of highly polluting vehicles. — AFP Relaxnews

To improve air quality, cities could install roadside sensors to detect the presence of high-polluting vehicles, suggest Australian researchers. The idea would be to combine this monitoring system with a program to repair vehicles that are heavy emitters.

Researchers at the University of Technology Sydney, the study authors analyzed data obtained from pollution radars – on road remote sensing technology, set up by the Hong Kong Environmental Protection Department. This remote monitoring program began in September 2014.