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Tuesday brought inhabitants of the world's most polluted city found themselves inhaling extremely polluted air that was classified as the "severe" range.

Record-Breaking Pollution Measurements

Various sections of Delhi showed an air quality index exceeding 500, which translates to a tenfold increase over the recommended threshold established by the global health authority.

In some locations, readings of toxic particulate matter soared to of eighteen hundred, amounting to 15-20x higher than safe limits.

Firecracker Ban and Recent Changes

Since 2020, the government had maintained a total prohibition on the purchase and ignition of fireworks during celebrations due to their significant contribution to the dangerous pollution that blankets the metropolis as colder weather begins.

Nevertheless recently, the current city leadership approached the highest court to seek a modification of the prohibition.

Officials advocated for allowing "green crackers" – historically doubted by conservation groups as being only roughly 30 percent lower impact – as a balance between "tradition and environment".

Judicial Decision and Implementation

Despite concerns of public health and environmental campaigners, the court approved the appeal, mandating that green firecrackers could be set off during specific time windows throughout the festival.

Throughout the festival evening, there was considerable disregard of the designated hours across the metropolis, with little monitoring regarding whether the fireworks being used were actually the supposedly greener variety.

Many recording stations throughout the capital registered contamination peaking around late evening to some of the worst readings observed during celebrations in at least three years.

Regional Implications

The proliferation of firecrackers during the celebrations also initiated a blame game with adjacent Pakistan, with officials in Pakistani Punjab pointing to deteriorating atmospheric conditions in Lahore on contaminants coming from India following the celebrations.

Chronic Environmental Crisis

Alarmingly severe readings of pollution in the city have persisted as a major challenge for more than 15 years, with the problem showing no improvement.

Around Diwali, the levels of hazardous airborne contaminants in the air has been found to spike to 70% higher the most severe readings ever recorded in the Chinese city, which was previously viewed as the globally most contaminated metropolis.

Diverse Pollution Factors

This crisis in Delhi is resulting from a convergence of various sources including automobile exhaust, construction debris, building projects, rubbish burning and smoke from crop residue ignition in adjacent states of Punjab and Haryana.

Throughout these areas, agricultural workers illegally burn crop residue to prepare for next season, producing hazardous pollution that remains stagnant over the city as cooler air descends.

Medical and Financial Toll

Public health and economic toll on the nearly 33 million inhabitants living in the metropolitan zone is significant, according to numerous studies.

This pollution results in high levels of neurological, cardiovascular and lung conditions, and can even lead to malignancies.

Air quality crisis is projected to be causing ten thousand untimely fatalities per year in the city.