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Tuesday brought residents of the planet's dirtiest urban center were faced with inhaling severely hazardous air that was classified as the "alarming" range.

Record-Breaking Pollution Levels

Various sections of the city showed an air quality index exceeding 500, which equals a tenfold increase over the healthy threshold recommended by the global health authority.

In some locations, readings of PM2.5 and PM10 reached peaks of 1800, representing fifteen to twenty times above acceptable limits.

Fireworks Prohibition and Recent Policy Shifts

Beginning in 2020, the government had implemented a complete ban on the purchase and ignition of pyrotechnics during Diwali due to their major role to the hazardous pollution that engulfs the metropolis as colder weather begins.

Yet in recent months, the newly elected local administration petitioned the supreme court to propose a easing of the prohibition.

They proposed allowing "green crackers" – which have been doubted by environmentalists as being only about 30% lower impact – as a compromise between "cultural practices and environment".

Court Ruling and Enforcement

To the disappointment of medical and ecological campaigners, judicial authorities complied with the proposal, mandating that environmentally conscious fireworks could be set off during designated time windows throughout the festival.

Throughout the festival evening, there was widespread disregard of the time restrictions across the metropolis, with minimal monitoring regarding whether the pyrotechnics being used were actually the supposedly greener version.

Several recording stations throughout the capital recorded contamination peaking around late evening to the most severe readings recorded during Diwali in at least recent memory.

Cross-Border Consequences

The widespread use of fireworks during the festival also initiated a blame game with adjacent Pakistan, with authorities in Pakistan's Punjab pointing to worsening pollution levels in their urban centers on contaminants coming from neighboring India following the celebrations.

Chronic Pollution Problem

The dangerously high levels of atmospheric toxins in the city have remained as a significant challenge for over a decade and a half, with the condition gradually deteriorating.

Near Diwali, the amount of hazardous particles in the air has been found to spike to significantly exceeding the peak records ever documented in Beijing, which was once viewed as the planet's dirtiest city.

Diverse Pollution Contributors

The problem in Delhi is caused by a convergence of different contributors including heavy vehicle emissions, dust, construction activities, rubbish burning and pollutants from farm burning in nearby states of Punjab and Haryana.

In these regions, farmers regularly ignite agricultural waste to prepare for next season, producing toxic pollution that then gets trapped over the capital as colder air sets in.

Public Health and Economic Impact

Public health and economic toll on the roughly thirty-three million residents residing in the capital region is substantial, according to various studies.

This pollution leads to increased incidence of nervous system, cardiovascular and lung disorders, and can potentially cause malignancies.

Environmental contamination is projected to be causing approximately 10k premature mortalities per year in the city.