The World Health Organization (WHO) estimates that seven million premature deaths occur around the world because of air pollution, which is prompting new devices like this urban air pollution sensor to be developed.
The sensor has been created by researchers at the Chalmers University of Technology and is designed to be discreetly mounted onto existing street lamps in urban areas. The device consists of an optical nano-sensor that measures for low concentrations of nitrogen dioxide in the surrounding area. This data could then be used to pinpoint areas of high risk that require infrastructure changes or municipal attention to curb pollution.
Researcher Irem Tanyeli explained the urban air pollution sensor saying, "Air pollution is a global health problem. To be able to contribute to increased knowledge and a better environment feels great. With the help of these small, portable sensors, it can become both simpler and cheaper to measure dangerous emissions extremely accurately."
Image Credit: Mia Halleröd Palmgren/Chalmers University of Technology