Drones to monitor movement of PM2.5

Researchers in Shanghai have developed a method to use unmanned aerial vehicles to monitor the concentration of PM2.5 at high attitudes in the Yangtze River Delta.

A team from Shanghai Jiao Tong University collected three-dimensional data to map out how the airborne pollutants move in the atmosphere.

PM2.5 refers to airborne particles less than 2.5 microns in diameter that harm health.