How China’s cutting-edge drones are transforming the nation

In a small industrial area of Dongguan, a city in southern China’s Guangdong province, a drone hovers 150m above the ground. The IntelFlight device, equipped with a sensor that detects eight types of air pollutant, is collecting data after a resident reported an unpleasant odour to the environmental authorities.
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After circling for about 20 minutes, the drone transmits the information it has…