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As Tuesday dawned inhabitants of the planet's dirtiest urban center were faced with inhaling dangerously toxic air that was classified as the "alarming" range.

Extremely High Air Quality Measurements

Several parts of the city registered an AQI exceeding 500, which represents a tenfold increase over the safe limit established by the global health authority.

Particular areas, readings of dangerous airborne particles hit highs of 1,800, amounting to 15-20x higher than acceptable limits.

Firecracker Restrictions and Recent Changes

For the past four years, the government had maintained a total prohibition on the distribution and bursting of pyrotechnics during the Festival of Lights due to their substantial impact to the dangerous smog that covers the city as the cold season approaches.

However in recent months, the recently formed local leadership approached the supreme court to request a modification of the ban.

They proposed allowing "eco-friendly fireworks" – which have been questioned by conservation groups as being only roughly 30 percent reduced emissions – as a balance between "cultural practices and environment".

Court Ruling and Enforcement

Despite concerns of public health and environmental activists, judicial authorities approved the appeal, mandating that eco-friendly pyrotechnics could be used during designated hours throughout the Diwali.

Throughout the festival evening, there was considerable flouting of the designated hours across the city, with minimal monitoring regarding whether the fireworks being used were actually the supposedly greener version.

Numerous monitoring devices throughout Delhi recorded contamination reaching highest levels around late evening to some of the worst readings recorded during Diwali in at least three years.

Regional Consequences

The proliferation of pyrotechnics during the festival also initiated a blame game with bordering the neighboring country, with representatives in Pakistani Punjab partially attributing deteriorating atmospheric conditions in the city of Lahore on pollutants originating in across the border following the events.

Chronic Environmental Problem

The dangerously high levels of air contamination in the capital have remained as a significant challenge for fifteen-plus years, with the condition continuing to worsen.

Around the festival period, the amount of hazardous particles in the atmosphere has been documented to increase dramatically to 70% higher the most severe readings ever measured in China's capital, which was once regarded as the planet's dirtiest metropolis.

Various Pollution Sources

The problem in the city is caused by a mix of multiple factors including transportation pollution, airborne particles, development work, garbage fires and smoke from crop residue ignition in nearby areas of neighboring agricultural zones.

In these regions, farmers routinely ignite agricultural waste to clear them quickly, producing dangerous haze that remains stagnant over the capital as colder air sets in.

Public Health and Financial Impact

Public health and economic toll on the roughly thirty-three million inhabitants living in the metropolitan zone is substantial, according to various research.

These hazardous conditions leads to elevated rates of nervous system, heart and circulatory and lung conditions, and can even lead to oncological diseases.

Air quality crisis is estimated to be accounting for 10,000 early mortalities annually in the capital.