Around 3,746 vehicles were issued challans for lacking valid pollution certificates within 24 hours, while hundreds were turned back at border crossings.

For over 19 hours, the AQI maxed out at 500 at Rohini — 6 pm on Sunday to 1 pm on Monday. From 2 pm onwards, Rohini’s AQI was unavailable on Monday. “Insufficient data” was stated as the reason.

On Sunday, Delhi's air crossed the 'severe plus' category for the first time this winter—with a 24-hour average air quality index of 461—the second-worst AQI reading for December since the system was launched in April 2015.

Among the worst affected areas were Jahangirpuri and Mundka — both recording an AQI of 499, Bawana  at 498 and other regions which neared the 500 mark.

Wazirpur, Rohini And Ashok Vihar Lead Delhi’s Wall Of Shame

All 40 monitoring stations in Delhi show 'red', meaning AQI in the 'severe' category.

Revoking Stage III restrictions may give a false sense of security, as 'severe' AQI persists in parts of Delhi.

Delhi AQI data gap explained: The world’s most polluted capital city is still largely flying blind when it comes to understanding the full scope of the toxic air its residents breathe.

Delhi's air quality worsened to "very poor" after Stage-3 restrictions were lifted, with an AQI of 381, raising concerns over fluctuating pollution measures.

Delhi's air quality worsened to "very poor" after Stage-3 restrictions were lifted, with an AQI of 381, raising concerns over fluctuating pollution measures.

The streak began in early November as the winter pollution season took hold, but unlike previous years, farm fires have contributed far less to the crisis.

Ethiopia’s volcanic ash has reached Delhi-NCR, causing flight disruptions, while air pollution impact on the ground remains minimal.

The article reports that the city's Air Quality Index (AQI) remained in the 'severe' category for the third consecutive day, recording an average of 404. Crucially, this marks the third day in a row that the Centre's Air Quality Early Warning System (EWS) missed its forecast, having predicted the air quality would be 'very poor' instead of 'severe'.

The article reports that the city's Air Quality Index (AQI) remained in the 'severe' category for the third consecutive day, recording an average of 404.

Punjab and Haryana have been directed by the Supreme Court to submit detailed reports within a week on the steps taken to curb stubble burning

Punjab and Haryana have been directed by the Supreme Court to submit detailed reports within a week on the steps taken to curb stubble burning

In recent days, DSS forecasts projected that stubble burning could contribute over 30% to Delhi’s PM 2.5 levels. However, actual contributions have remained below 10%, based on fire counts recorded later in the day. 

Delhi's pollution monitoring app failed during a severe air quality crisis, sparking public anger as data went missing amid worsening haze.

Delhi's pollution monitoring app failed during a severe air quality crisis, sparking public anger as data went missing amid worsening haze.

Delhi's PM2.5 levels were below 1% for most of the season, with a recent increase to around 2% in a few days, as of early November. This recent rise is attributed to the typical seasonal increase in farm fires, with a peak expected in early November.