Air pollution is responsible for 550,000 premature deaths a year in Europe and 7 million worldwide, according to the WHO. Measuring it can be a challenge, however, as the equipment tends to be large and expensive. But soon, this may change, thanks to a small, optical nanosensor developed at Chalmers University of Technology, Sweden, which can be mounted onto an ordinary streetlight.
Click here for original story, Soon, air pollution could be measured on every street corner
Source: Phys.org