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Delhi's air quality plummets following Diwali festival celebrations

India's capital city has experienced a sharp deterioration in air quality in the aftermath of Diwali festivities, with widespread firework displays contributing to hazardous pollution levels across the metropolitan region.

LSN Bangladesh · 10 November 2026

New Delhi's air quality index has reached concerning levels following the Diwali celebrations, as massive firework displays during the Hindu festival of lights have released significant quantities of particulate matter and pollutants into the atmosphere. The spike in pollution has been particularly pronounced in central and northern districts of the city, where residents reported reduced visibility and respiratory discomfort.

Environmental monitoring agencies recorded air quality readings in the hazardous range, prompting health advisories for vulnerable populations including children, the elderly, and individuals with pre-existing respiratory conditions. The pollution surge follows traditional patterns observed annually during Diwali, when celebratory fireworks combine with existing ambient pollution and unfavorable meteorological conditions.

Authorities have urged residents to limit outdoor activities and use air purification measures indoors. The seasonal deterioration in Delhi's air quality remains a persistent public health concern, with pollution levels typically worsening during winter months when atmospheric conditions trap pollutants closer to the ground.

Meteorological forecasters indicated that wind patterns may provide some relief in coming days, potentially dispersing accumulated pollutants and gradually improving air quality across the capital region.