New Delhi, 24/11: Air quality in Delhi turned “severe” again on Friday with a dip in temperatures and slow wind speed at night allowing accumulation of pollutants.
Delhi has been witnessing a gradual increase in AQI levels after a marginal improvement on Sunday. The 24-hour average AQI, recorded at 4 pm every day, was 390 on Thursday, 394 on Wednesday, 365 on Tuesday, 348 on Monday and 301 on Sunday.
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