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On Tuesday morning citizens of this heavily contaminated metropolis found themselves exposed to extremely polluted air that fell into the "severe" range.

Record-Breaking Air Quality Measurements

Various sections of the capital registered an air quality index exceeding 500, which equals ten times the safe level established by the global health authority.

Certain monitoring stations, levels of toxic particulate matter reached peaks of eighteen hundred, equating to 15-20x higher than safe levels.

Fireworks Ban and New Developments

For the past four years, officials had enforced a total prohibition on the purchase and ignition of firecrackers during celebrations due to their major role to the hazardous haze that blankets the metropolis as the cold season approaches.

Nevertheless recently, the current city government petitioned the supreme court to seek a easing of the ban.

They proposed allowing "green crackers" – historically doubted by conservation groups as being only approximately one-third reduced emissions – as a balance between "heritage and environment".

Legal Decision and Implementation

To the disappointment of environmental and health activists, judicial authorities approved the appeal, stipulating that green firecrackers could be used during limited hours throughout the celebrations.

Throughout the festival evening, there was extensive violation of the regulated periods across the city, with minimal monitoring regarding whether the fireworks being used were actually the supposedly greener type.

Several air quality sensors throughout the city showed air quality spiking around late evening to the most severe measurements observed during celebrations in at least three years.

Cross-Border Implications

The proliferation of pyrotechnics during the celebrations also sparked a controversy with adjacent the neighboring country, with authorities in Pakistani the Punjab region partly blaming deteriorating air quality in Lahore on pollutants coming from across the border following the festivities.

Chronic Environmental Crisis

Alarmingly severe readings of pollution in Delhi have remained as a serious issue for more than 15 years, with the problem gradually deteriorating.

During celebratory seasons, the concentration of toxic particles in the atmosphere has been documented to shoot up to seventy percent above the peak readings ever measured in China's capital, which was formerly regarded as the world's most polluted urban center.

Multiple Pollution Contributors

The situation in the city is attributed to a convergence of multiple factors including automobile exhaust, dust, construction activities, waste incineration and pollutants from crop residue ignition in neighbouring states of farming communities.

Throughout these areas, agricultural workers regularly set their fields on fire to clear them quickly, creating hazardous smog that remains stagnant over the metropolitan area as winter air descends.

Public Health and Economic Toll

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

This pollution results in high levels of neurological, cardiovascular and breathing disorders, and can result in malignancies.

Air quality crisis is projected to be causing approximately 10k early mortalities each year in Delhi.