The layer of smog thickened over Delhi on Thursday as the capital’s air quality deteriorated and reached the brink of ‘severe’ air quality. The 24-hour average Air Quality Index (AQI) of Delhi was 400 in ‘very poor’ category at 4 pm. However, it slipped into ‘severe’ category by 6 pm, shows data from the Central Pollution Control Board.from Delhi News: Latest Delhi News Headlines & Live Updates from Delhi - Times of India https://ift.tt/3p4zBCP
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