The major pollutant that affects lungs and risks major health issues recorded a massive 140% jump in the 24-hour period since last morning as the air quality in Delhi deteriorated back to toxic levels a day after Diwali.
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As Delhi records 'severe' air quality for the sixth consecutive day, NDTV spoke to Dr Arvind Kumar, chairman of Institute of Chest Surgery at Medanta Gurugram on the risks due to the toxic air, who is the most vulernable and the right kind of masks