Delhi air quality likely to worsen to ‘very poor’ from December 11

The overall air quality of Delhi continued to be in the ‘poor’ category on Wednesday (December 10, 2025) and it is likely to worsen to the ‘very poor’ from Thursday (December 10, 2025), according to official data.

“The air quality is likely to be in the Very Poor category from 11.12.2025 to 13.12.2025. The outlook for the subsequent 6 Days: The air quality is likely to be in the Very Poor category,” said the Central government’s ‘Air Quality Early Warning System for Delhi’.

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Delhi’s 24-hour average air quality index (AQI) was 259 (poor) at 4 p.m. on Wednesday (December 10, 2025), slightly down from 282 (poor) a day earlier, as per the Central Pollution Control Board’s (CPCB) daily official bulletin, which is considered as a day’s official AQI. A higher AQI means an increase in air pollution.

An AQI between 51 and 100 is “satisfactory”, 101 and 200 is termed as “moderate”, 201 and 300 “poor”, 301 and 400 “very poor”, and 401 and 500 “severe”, as per the CPCB.