India Meteorological Department Scientist Dr Vijay Kumar Soni said that the air quality of Delhi is to remain in the ‘poor category’ for the next three days. "In Delhi, the air quality reached the ‘severe’ category in the last few days. After 30th December, there’s an improvement in the index number. Right now, the air quality is in the ‘poor’ category. We hope there won’t be much deterioration after that," Dr Soni said in a telephonic interview.
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