The air quality in the national capital has continued to deteriorate in the last few days. However, amid the concerning conditions, Delhi`s air quality on Wednesday improved slightly but still remained in the `poor` category with an AQI reading of 273.

As reported by news agency PTI, twenty-seven monitoring stations recorded air quality in the `poor` category, while Shadipur was in the `very poor` category with a reading of 308, according to the CPCB`s Sameer app.