Delhi air quality in 'very poor' category after six-day severe streak

After remaining in the “severe” zone for six days on the trot, Delhi's air quality improved slightly on Wednesday as a change in the wind direction reduced the contribution of stubble burning to the pollution, though it was still in the “very poor” category. The city recorded an air quality index (AQI) of 344. The 24-hour average AQI was 476 on Tuesday. An AQI b more

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