Delhi's air pollution woes continue to get worse with each day, as over 14 areas in the national capital recorded an AQI of over 400 on Sunday. Most of these areas that had ‘very poor’ air quality last week, have now fallen to the ‘severe’ zone, CPCB data showed.

Every year, Delhi and northern states battle hazardous air during the winter months of October to January due to plummeting temperatures, smoke, dust, low wind speed, vehicular emissions and crop stubble burning. This time, experts say that the condition is likely to get worse in the coming days.

Air pollution choking New Delhi has ground outdoor work to a halt and disrupted air travel in the Indian capital.

After reaching a peak, Delhi’s AQI has remained in the ‘severe’ category for the fourth day in a row. Covered in a thick blanket of fog and pollution, the poor visibility has even caused many school to remain closed for the past few days.