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As Tuesday dawned residents of the planet's dirtiest urban center found themselves exposed to severely hazardous air that registered in the "alarming" level.

Record-Breaking Pollution Levels

Several parts of the capital showed an air quality index over 500, which equals ten times the recommended limit set by the global health authority.

In some locations, concentrations of toxic particulate matter reached peaks of 1800, amounting to fifteen to twenty times above acceptable levels.

Fireworks Prohibition and Recent Developments

For the past four years, the government had implemented a total prohibition on the sale and use of firecrackers during celebrations due to their substantial impact to the deadly pollution that blankets the capital as the cold season approaches.

However earlier this year, the current city leadership approached the judicial authority to propose a relaxation of the ban.

The suggestion was allowing "green crackers" – historically doubted by environmentalists as being only roughly 30 percent reduced emissions – as a middle ground between "cultural practices and environment".

Legal Decision and Enforcement

Despite concerns of medical and ecological campaigners, judges approved the appeal, stipulating that environmentally conscious fireworks could be set off during specific hours throughout the Diwali.

Throughout the festival evening, there was considerable violation of the time restrictions across the city, with minimal regulation regarding whether the pyrotechnics being used were actually the supposedly greener type.

Many monitoring devices throughout the city registered air quality peaking around midnight to some of the worst levels seen during celebrations in at least recent memory.

Cross-Border Implications

The proliferation of pyrotechnics during Diwali also triggered a controversy with neighbouring the neighboring country, with representatives in Pakistan's Punjab pointing to deteriorating pollution levels in the city of Lahore on hazardous particles originating in across the border following the events.

Long-Standing Pollution Crisis

Alarmingly severe readings of air contamination in Delhi have continued as a significant challenge for over a decade and a half, with the problem gradually deteriorating.

Around Diwali, the amount of toxic particulate matter in the atmosphere has been observed to spike to seventy percent above the peak records ever measured in the Chinese city, which was previously regarded as the world's most polluted city.

Various Pollution Sources

The problem in the city is resulting from a mix of different contributors including transportation pollution, airborne particles, construction activities, rubbish burning and haze from agricultural fires in neighbouring states of neighboring agricultural zones.

Throughout these areas, farmers routinely burn crop residue to clear them quickly, creating hazardous pollution that remains stagnant over the capital as cooler air arrives.

Medical and Financial Toll

Public health and economic consequences on the roughly thirty-three million residents living in the metropolitan zone is substantial, according to multiple studies.

This pollution results in increased incidence of neurological, cardiovascular and breathing disorders, and can even lead to malignancies.

The pollution is calculated to be accounting for ten thousand early deaths annually in Delhi.