Chennai's Air Quality Plummets to 'Very Poor' as Diwali Festivities Push AQI Above 300

Air quality in Chennai deteriorated sharply during Diwali celebrations, with multiple monitoring stations reporting 'very poor' conditions as the Air Quality Index crossed the 300 threshold on the national pollution scale.

Valasaravakkam, a densely populated residential enclave in southwest Chennai, recorded the highest AQI reading in the city at 343, reflecting severe air pollution levels. Nungambakkam in central Chennai followed closely at 332, while Sowcarpet, another crowded commercial and residential hub, also registered dangerously elevated pollution levels.

The deterioration in air quality coincided with widespread firecracker bursting across the city during Diwali festivities, a phenomenon that traditionally contributes to temporary but significant air pollution spikes across major Indian urban centers. The readings classified the air quality as hazardous for the general public, particularly affecting vulnerable populations including children, elderly residents, and those with respiratory conditions.

An AQI reading above 300 falls in the 'very poor' category, indicating that members of the general public are likely to experience adverse health effects with prolonged exposure. Environmental agencies had previously issued advisories urging residents to minimize outdoor activities and use air purification measures during the festival period.

The spike underscores the seasonal air quality challenges faced by metropolitan areas during festival seasons, prompting ongoing discussions among environmental authorities and civic bodies regarding sustainable celebration practices.