The Capital continued to choke on Wednesday, with its average air quality index (AQI) remaining ‘Severe’ for the second consecutive day at 418 and stubble burning in the neighbouring states contributing most to Delhi’s bad air. This is the first time this season that the share of stubble burning as a pollution source has surpassed other emissions.

Delhi had recorded its first ‘Severe’ air quality day of the season on Tuesday, with the overall AQI reaching 428 – the worst since December 19 last year.

According to data from the Decision Support System (DSS) of the Indian Institute of Tropical Meteorology (IITM), stubble burning contributed 22.47% to Delhi’s PM2.5 concentration on Wednesday – the highest share recorded so far this season. It surpassed transport emissions recorded at 15.59%

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