A Bangalore-based company claimed on Sunday that it had used radio frequency waves to lower air pollution over parts of Delhi, surprising sections of scientists who say they have never heard of such technology.
Devic Earth had installed devices that broadcast ultrahigh frequency (UHF) radio waves at two sites in the capital, responding to requests from Procam International, the organisers of the Delhi half-marathon, a Devic official said.
Company officials and the organisers have claimed the devices helped lower levels of tiny particulate matter (PM) in the air and served as a protective umbrella for the marathon runners. The devices used on Sunday were paid for by the organisers.
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