Season of smog begins with air quality index near worst possible level of 500 and little apparent progress in controlling annual poisonous blight on life
Air quality in Delhi hit severe levels on Friday and a thick toxic smog cloaked the city, marking the beginning of a pollution season that has become an annual catastrophe for India’s capital.
Schools were shut and non-essential construction was banned around Delhi as the air quality index in the city almost hit 500 – the highest the measurement will go and 100 times the limit deemed to be healthy by the World Health Organization.
