Delhi's Air Quality Deteriorates To Poor, A Station Records AQI Above 300

New Delhi: Delhi's air quality deteriorated to the poor category on Wednesday, ending a four-day streak of moderate air quality, with one monitoring station recording very poor air quality as the AQI crossed the 300 mark. The Air Quality Index (AQI) in the city deteriorated to 229 on Wednesday from 197 on Tuesday, according to the Central Pollution Control Board (CPCB). Of the city's 58 monitoring stations, Vivek Vihar recorded the worst air quality, with an AQI of 316, placing it in the very poor category. Sixteen stations recorded moderate air quality, while the remaining 41 were in the poor category.

As per CPCB standards, an AQI between zero and 50 is considered good, 51 and 100 satisfactory, 101 and 200 moderate, 201 and 300 poor, 301 and 400 very poor, and 401 and 500 severe.

Earlier this month, Delhi recorded poor air quality on October 21, when the AQI stood at 245, followed by 223 on October 22 and 230 on October 23. Air quality then remained in the moderate category for four consecutive days before deteriorating again on Wednesday.