The Air Quality Early Warning System (AQEWS) predicts that Delhi's air quality will remain in the "poor" category until at least Saturday. A bulletin released on Wednesday evening stated: "The air quality is likely to stay 'poor' from Thursday to Saturday, with the outlook for the next six days also indicating 'poor' air quality."

Delhi's air quality took a downturn on Sunday, plunging again into the 'very poor' category with an AQI reading of 302 after having improved to the 'moderate' level at the start of December. The air quality had last been recorded in the 'very poor' category on November 30, with a reading of 346.

Air quality in the national capital once again slipped in the 'poor' category, after a day of light rains brought respite from the high AQI.

Delhi's air quality persisted in the 'poor' category on Wednesday morning, with an AQI of 209. Varied AQI levels were observed across the city, ranging from 'moderate' to 'poor'. Experts attribute Monday's improved air quality to regional rainfall.

Previously, the Supreme Court had allowed the Commission for Air Quality Management (CAQM) to scale down air pollution measures in Delhi from Grap Stage IV to Stage II, citing improved air quality over the past week.

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A day after recording 'moderate' AQI, Delhi's air quality slipped into 'poor' category on Tuesday, with forecast suggesting it will remain the same for the next couple of days