Participants run past India Gate as they take part in the Airtel Delhi Half Marathon in New Delhi, India, October 21, 2018. REUTERS/Anushree Fadnavis
NEW DELHI (Reuters) - New Delhi's half-marathon race used ultra high frequency (UHF) radio waves to clear the air for the runners on Sunday, an experimental technique the organisers hope could improve the city's notorious air quality.
India is home to the world's 14 most polluted cities. Last year the smoke from burning crop waste and thousands of firecrackers contributed to a toxic smog that blanketed the capital of New Delhi and a large part of northern India in toxic smog.
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