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Tuesday brought citizens of this heavily contaminated metropolis were faced with breathing severely hazardous air that fell into the "alarming" range.

Record-Breaking Pollution Readings

Various sections of the capital showed an pollution measurement over 500, which translates to 10x the safe threshold set by the WHO.

Particular areas, levels of PM2.5 and PM10 hit highs of 1,800, equating to 15 to 20 times higher than healthy limits.

Pyrotechnics Prohibition and Current Policy Shifts

For the past four years, authorities had enforced a total prohibition on the purchase and ignition of fireworks during celebrations due to their significant contribution to the dangerous haze that blankets the city as the cold season approaches.

However in recent months, the newly elected local government appealed to the supreme court to seek a modification of the ban.

Officials advocated for allowing "green crackers" – previously doubted by environmentalists as being only approximately one-third reduced emissions – as a compromise between "heritage and environment".

Court Decision and Implementation

To the disappointment of medical and ecological activists, judges agreed to the proposal, stipulating that eco-friendly pyrotechnics could be set off during specific periods throughout the festival.

Throughout the festival evening, there was widespread violation of the designated hours across the city, with insufficient regulation regarding whether the firecrackers being used were actually the more environmentally friendly version.

Numerous recording stations throughout the city showed air quality peaking around late evening to the most severe measurements seen during the festival in at least the past three years.

International Effects

The proliferation of pyrotechnics during the celebrations also initiated a blame game with adjacent the neighboring country, with representatives in Pakistani Punjab partially attributing worsening pollution levels in Lahore on hazardous particles coming from neighboring India following the celebrations.

Chronic Pollution Problem

Extremely elevated readings of air contamination in Delhi have remained as a major issue for fifteen-plus years, with the problem continuing to worsen.

During celebratory seasons, the amount of toxic particulate matter in the air has been documented to increase dramatically to significantly exceeding the peak readings ever recorded in Beijing, which was previously viewed as the world's most polluted city.

Multiple Contamination Factors

The problem in the capital is attributed to a convergence of different contributors including transportation pollution, dust, development work, waste incineration and smoke from crop residue ignition in adjacent regions of farming communities.

Throughout these areas, agricultural workers routinely ignite agricultural waste to expedite field preparation, producing toxic haze that remains stagnant over the city as cooler air arrives.

Health and Economic Consequences

The economic and health toll on the nearly 33 million residents residing in the Delhi area is enormous, according to various investigations.

The contaminated air causes elevated rates of nervous system, cardiovascular and respiratory conditions, and can result in cancer.

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