📷 Image: Wikimedia Commons / Arjunfotografer
Weather
Delhi’s AQI Surpasses 500 as Night‑time Pollution Peaks
✍️ India Today
🗓 05 Nov 2026, 05:17 PM
👁 18
The capital’s Air Quality Index rose above 500, marking hazardous levels, with spikes observed during night and early morning hours.
Delhi recorded an Air Quality Index (AQI) exceeding 500, a level classified as hazardous by health authorities. The surge was most pronounced during the night and early morning, periods when pollutant concentrations typically rise.
Experts point to temperature inversion and stagnant atmospheric conditions as key factors that trap pollutants close to the ground after sunset. Reduced wind speed and lower temperatures limit the dispersion of emissions from traffic, industry and residential sources.
The city’s monitoring network flagged the spike across multiple stations, prompting health advisories for vulnerable groups such as children, the elderly and those with respiratory conditions. Residents were urged to limit outdoor activities and keep windows closed.
Authorities continue to track the situation, emphasizing the need for sustained emission control measures to prevent recurring episodes of extreme air pollution.
The episode underscores the chronic challenge Delhi faces in managing air quality, especially during periods when natural atmospheric dynamics exacerbate pollutant buildup.
Experts point to temperature inversion and stagnant atmospheric conditions as key factors that trap pollutants close to the ground after sunset. Reduced wind speed and lower temperatures limit the dispersion of emissions from traffic, industry and residential sources.
The city’s monitoring network flagged the spike across multiple stations, prompting health advisories for vulnerable groups such as children, the elderly and those with respiratory conditions. Residents were urged to limit outdoor activities and keep windows closed.
Authorities continue to track the situation, emphasizing the need for sustained emission control measures to prevent recurring episodes of extreme air pollution.
The episode underscores the chronic challenge Delhi faces in managing air quality, especially during periods when natural atmospheric dynamics exacerbate pollutant buildup.