Delhi woke up to even worse air on Thursday, November 12, with the city's overall Air Quality Index (AQI) spiking to 321.
Some spots were hit especially hard, like IIT Delhi, where the AQI soared to a severe 414.
That's a noticeable jump from Wednesday and means breathing outside just got riskier for everyone.
PM2.5 and PM10 dominate Delhi pollution
Most of the city's 57 monitoring stations flagged very poor air, with places like NSUT Jaffarpur and ITO nearly reaching the severe mark too.
The main culprits? Tiny particles called PM2.5 and PM10, which made up most of the pollution across Delhi.