Bihar woke up to hazardous air on 7 November 2026 as Diwali firecracker emissions drove the Air Quality Index (AQI) in Buxar to 441 — firmly in the 'extremely poor' category — posing serious health risks across the state. Available air quality data shows at least nine major Bihar cities recording dangerously elevated pollution readings in the wake of the festival, with widespread particulate matter and smoke blanketing urban centres.

City-wise AQI Readings

Buxar topped the list at 441, followed by Bettiah at 364, Motihari at 357, Sasaram and Siwan both at 326, and Muzaffarpur at 325. Further readings showed Darbhanga at 300, Samastipur at 289, Bhagalpur at 268, and the state capital Patna at 248. It is worth noting that AQI figures may vary depending on the monitoring platform and the time of measurement.

Who Is Most at Risk

Health concerns are particularly acute for residents suffering from respiratory ailments, asthma, and other pre-existing conditions. In Patna, residents reported considerable discomfort from the combined effect of baseline urban pollution and the additional smoke load from firecrackers. Beyond air quality, sustained high-decibel firecracker bursts also contributed to significant noise pollution, affecting elderly residents, children, and those with cardiac or neurological conditions.

What Environmental Experts Said

Environmental expert Raj Kumar Jha urged parents to take direct responsibility for limiting children's exposure to polluted air. 'Children learn from the environment they experience at home. Parents should discourage them from spending long hours outdoors bursting firecrackers. No matter how much effort the government makes, pollution cannot be controlled without public cooperation,' Jha said.

Jha also questioned the efficacy of administration-led measures, specifically the practice of sprinkling water on selected roads. 'Spraying water on roads and focusing only on a few VIP areas will not solve the problem. There is an urgent need to address pollution, garbage, contaminated water and open drains in localities such as Saristabad and Gardanibagh,' he added. He stressed that meaningful pollution control requires sustained, year-round effort rather than symbolic action confined to festival periods.

Systemic Gaps in Pollution Control

The annual Diwali air quality crisis in Bihar reflects a broader structural challenge: pollution monitoring and enforcement mechanisms remain concentrated in select urban zones, leaving outlying cities and working-class neighbourhoods with limited protection. This is not an isolated occurrence — similar spikes were recorded across Bihar in previous years, underscoring that short-term administrative responses have so far failed to deliver lasting improvement.

What Needs to Happen Next

Experts and health advocates argue that addressing Bihar's pollution crisis requires a combination of public awareness campaigns, enforceable restrictions on firecracker use, and investment in environmental infrastructure beyond VIP corridors. With air pollution now a year-round public health concern in the state, the pressure on both the administration and citizens to adopt sustained corrective action is set to intensify.