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As Tuesday dawned inhabitants of the planet's dirtiest urban center found themselves breathing dangerously toxic air that registered in the "severe" category.

Alarming Air Quality Measurements

Various sections of the city recorded an air quality index above 500, which represents ten times the healthy limit set by the global health authority.

Particular areas, levels of toxic particulate matter reached peaks of eighteen hundred, representing 15-20x exceeding healthy limits.

Firecracker Restrictions and Current Policy Shifts

For the past four years, the government had implemented a complete ban on the distribution and bursting of firecrackers during the Festival of Lights due to their significant contribution to the deadly haze that covers the capital as winter approaches.

Yet recently, the recently formed city administration petitioned the judicial authority to seek a relaxation of the prohibition.

They proposed allowing "environmentally conscious pyrotechnics" – previously doubted by environmental experts as being only about 30% less polluting – as a compromise between "heritage and public health".

Judicial Verdict and Implementation

To the disappointment of medical and ecological campaigners, the court approved the request, specifying that green firecrackers could be set off during designated periods throughout the Diwali.

On Monday night, there was widespread disregard of the time restrictions across the metropolis, with insufficient regulation regarding whether the fireworks being used were actually the eco-friendly variety.

Numerous air quality sensors throughout Delhi registered pollution spiking around the night hours to the most severe levels recorded during celebrations in at least three years.

International Consequences

Extensive ignition of fireworks during Diwali also sparked a dispute with bordering the neighboring country, with representatives in Pakistani Punjab pointing to deteriorating pollution levels in the city of Lahore on pollutants traveling from India following the festivities.

Long-Standing Environmental Crisis

The dangerously high readings of atmospheric toxins in the city have persisted as a serious issue for fifteen-plus years, with the situation continuing to worsen.

Around Diwali, the amount of dangerous particulate matter in the atmosphere has been documented to increase dramatically to 70% higher the worst readings ever measured in the Chinese city, which was previously viewed as the planet's dirtiest metropolis.

Diverse Pollution Sources

This crisis in Delhi is caused by a convergence of various sources including transportation pollution, construction debris, construction activities, garbage fires and haze from agricultural fires in nearby areas of neighboring agricultural zones.

Within these states, farmers regularly ignite agricultural waste to prepare for next season, generating dangerous pollution that then gets trapped over the capital as winter air descends.

Medical and Economic Impact

The economic and health consequences on the approximately 33 million people calling home the capital region is substantial, according to various investigations.

This pollution leads to elevated rates of neurological, heart and circulatory and respiratory diseases, and can result in malignancies.

Air quality crisis is projected to be responsible for approximately 10k premature deaths per year in the city.