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On Tuesday morning residents of this heavily contaminated metropolis encountered breathing dangerously toxic air that was classified as the "alarming" level.

Alarming Air Quality Readings

Various sections of the city recorded an air quality index exceeding 500, which translates to 10x the recommended level set by the WHO.

Particular areas, readings of toxic particulate matter soared to of 1,800, equating to 15-20x above healthy limits.

Pyrotechnics Ban and New Developments

Since 2020, authorities had implemented a complete ban on the purchase and ignition of firecrackers during the Festival of Lights due to their significant contribution to the hazardous haze that blankets the city as colder weather approaches.

However earlier this year, the current regional administration approached the judicial authority to propose a modification of the restrictions.

They proposed allowing "eco-friendly fireworks" – historically questioned by environmental experts as being only roughly 30 percent lower impact – as a compromise between "tradition and environment".

Legal Decision and Reality

Despite concerns of medical and ecological campaigners, judicial authorities agreed to the request, stipulating that green firecrackers could be used during specific time windows throughout the festival.

During the celebrations, there was considerable violation of the time restrictions across the city, with minimal monitoring regarding whether the fireworks being used were actually the eco-friendly type.

Several monitoring devices throughout the capital registered contamination reaching highest levels around midnight to the most severe readings observed during the festival in at least the past three years.

International Effects

Extensive ignition of pyrotechnics during the festival also sparked a blame game with bordering Pakistan, with authorities in Pakistan's Punjab province partially attributing deteriorating pollution levels in Lahore on contaminants originating in across the border following the events.

Persistent Environmental Problem

Alarmingly severe readings of air contamination in the city have remained as a major problem for more than 15 years, with the situation showing no improvement.

Around Diwali, the levels of toxic particles in the atmosphere has been documented to shoot up to seventy percent above the peak records ever documented in Beijing, which was formerly considered as the planet's dirtiest urban center.

Diverse Pollution Contributors

This crisis in Delhi is caused by a convergence of different contributors including transportation pollution, airborne particles, building projects, waste incineration and haze from farm burning in nearby states of Punjab and Haryana.

Within these states, farmers illegally ignite agricultural waste to clear them quickly, creating toxic smog that remains stagnant over the city as cooler air descends.

Health and Economic Consequences

The economic and health impact on the approximately 33 million people living in the capital region is enormous, according to numerous investigations.

This pollution leads to increased incidence of nervous system, cardiovascular and respiratory conditions, and can result in cancer.

The pollution is projected to be responsible for ten thousand early deaths each year in the capital.