Delhi has worst Diwali air in 4 years, Tuesday winds prevent ‘severe’ drop | Delhi News
NEW DELHI: Widespread bursting of firecrackers beyond the time window permitted by Supreme Court on Diwali night drove Delhi’s air quality deeper into the ‘very poor’ category on Tuesday.The surge of toxic smoke, laden with pollutants and heavy metals, caused the city’s average hourly PM2.5 levels to touch 675 micrograms/cubic metre at midnight, the highest…