Delhi found itself enveloped in a thick grey haze and its air quality entered the "red zone" a day after Diwali, which saw cracker-bursting well beyond the two-hour limit (8 pm to 10 pm) set by the Supreme Court.

New Delhi: Delhi on Tuesday recorded its worst post-Diwali air quality in the last four years. According to the data, the pollution levels spiked sharply the previous night as PM2.5 concentrations peaked at 675, while the BJP government attributed it to stubble burning in the AAP-ruled Punjab rather than firecrackers. Delhi found itself enveloped in a thick grey haze and its air quality entered the “red zone” a day after Diwali, which saw cracker-bursting well beyond the two-hour limit (8 pm to 10 pm) set by the Supreme Court.

The city’s 24-hour average Air Quality Index (AQI)

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