China using drones to combat pollution
May 22 HuffPost
China will use drones to monitor pollution levels and corporate
polluters in the country's smoggiest regions.
The drones will monitor companies who emit pollutants judging
offending smokestacks by the color of their emissions.
"You can easily tell from the color of the smoke black, purple, and
brown that the pollution is over the limit, because if the smokestack
scrubbers are operating properly, only white smoke is emitted." said
Chinese official Yang Yipeng.
If the drones find pollutants, they will spray chemicals to freeze
the pollutants to prevent them from falling to the ground.
This is part of what the Chinese premier calls the "War on Pollution.
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