Diwali Firecrackers Push New Delhi Air Quality Into Severe Range

A heavy gray haze blanketed New Delhi on Monday morning after residents ignited firecrackers during Diwali celebrations on Sunday evening. The smoke from the fireworks combined with existing seasonal pollution to push the air quality index above 350 in several parts of the capital. This reading places the air in the severe category, a level that poses direct health risks to residents.

The Supreme Court of India had previously ruled in October to limit Diwali pollution. The order restricted the use of conventional firecrackers and permitted only approved green firecrackers under specific conditions. These allowed windows were limited to three hours on Saturday and Sunday. While the green variety produces fewer emissions, experts note they are not pollution-free and still release particulate matter into the air.

Despite the judicial limits, residents across the city used firecrackers to mark the Hindu festival of lights. Monitoring stations recorded high levels of pollution throughout the capital. Visibility dropped as the haze obscured streets and high-rise buildings. The smog arrived after a period of cooler weather and low wind speeds, conditions that prevent pollutants from dispersing.

Local sources contribute to the pollution, but smoke from crop-residue burning in neighboring states also plays a major role. Farmers in Punjab and Haryana burn leftover rice stalks after harvest to clear fields for the next planting season. The smoke from these fires drifts toward New Delhi, mixing with emissions from vehicles, industries, and construction sites. The metropolitan region, which is home to more than 30 million people, regularly ranks among the most polluted areas in the world during the winter months.

Isyad, a New Delhi resident, reported physical discomfort due to the worsening air quality. He described irritation in his throat and itching in his eyes as a result of the pollution. Shweta Narayan, a public health expert at the Global Climate and Health Alliance, characterized the government's current response as temporary and reactive. She stated that many interventions occur only when the government is pressured to act.

Authorities in New Delhi have implemented measures to curb pollution, including limits on construction activity and restrictions on diesel generators. Environmentalists argue that long-term solutions, such as cleaner energy and stricter controls on vehicle emissions, are necessary to address the annual crisis. The combination of stagnant atmospheric conditions and multiple pollution sources creates a thick haze that can linger over the capital and surrounding areas for days.