Data from the CPCB highlights this risk, showing that pollution levels — specifically PM2.5 concentrations — are at their worst during the early morning hours.

The court observed that there was a complete lack of coordination between the Delhi government, the police and the MCD over enforcing heavy truck entry ban.

The court observed that there was a complete lack of coordination between the Delhi government, the police and the MCD over enforcing heavy truck entry ban.

Over the past four years, at least three key studies aimed at real-time pollution source identification have either been halted or rendered obsolete.

Experts called on the government to focus on controlling pollution at source and not undertake experiments without proven scientific efficacy

Delhi's air quality remains "severe-plus" for the fourth consecutive day, with an AQI of 460, worsened by farm fires and weather conditions.

Delhi's air quality remains "severe-plus" for the fourth consecutive day, with an AQI of 460, worsened by farm fires and weather conditions.

Delhi's air quality hit a severe AQI of 494, nearing its highest ever, causing health issues and prompting work-from-home orders amid ongoing pollution crises.

This was on a day that the average AQI of Delhi as a whole hit 494 — the city’s second highest AQI since 2015, when records began

This was on a day that the average AQI of Delhi as a whole hit 494 — the city’s second highest AQI since 2015, when records began

Environmental advocates and public health experts criticised the apparent delay in implementing Stage-3 of the Graded Response Action Plan (GRAP), arguing that the Commission for Air Quality Management (CAQM) appears to have lost sight of its primary mission—to act pre-emptively before air emergencies arise, not after.

A senior environment department official said the fresh mapping exercise factored in previously identified sources, following checks on whether they were fixed

Despite recording an excess monsoon, receiving over 1,000mm of rainfall between June and September, the best AQI this year was 53 (“satisfactory”) on August 8

While the 24-hour AQI climbed steadily through Thursday night, the city experienced an unexpected respite

Thousands ignored the ban on firecrackers, filling the night air with a dense haze of toxic smoke that pushed pollution to hazardous levels

The project is run by the Indian Institute of Tropical Meteorology (IITM), Pune, and functions under the Union ministry of earth sciences.