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Tuesday brought citizens of the planet's dirtiest urban center encountered inhaling severely hazardous air that fell into the "severe" category.

Extremely High Air Quality Measurements

Various sections of the capital recorded an air quality index exceeding 500, which translates to ten times the safe limit set by the WHO.

In some locations, levels of dangerous airborne particles reached peaks of 1800, representing 15 to 20 times higher than safe limits.

Pyrotechnics Prohibition and Current Changes

Since 2020, officials had implemented a comprehensive restriction on the distribution and bursting of fireworks during celebrations due to their major role to the hazardous haze that blankets the metropolis as the cold season sets in.

However in recent months, the current regional leadership appealed to the supreme court to seek a modification of the ban.

They proposed allowing "environmentally conscious pyrotechnics" – previously criticized by environmentalists as being only about 30% less polluting – as a middle ground between "cultural practices and environment".

Legal Verdict and Enforcement

To the disappointment of medical and ecological advocates, judicial authorities agreed to the appeal, mandating that environmentally conscious fireworks could be ignited during limited periods throughout the celebrations.

On Monday night, there was widespread flouting of the regulated periods across the city, with minimal enforcement regarding whether the firecrackers being used were actually the supposedly greener variety.

Many air quality sensors throughout Delhi showed contamination spiking around the night hours to extremely hazardous levels seen during Diwali in at least recent memory.

Regional Effects

The widespread use of fireworks during Diwali also sparked a controversy with adjacent Pakistan, with officials in Pakistan's the Punjab region pointing to worsening pollution levels in their urban centers on contaminants traveling from across the border following the festivities.

Persistent Pollution Issue

The dangerously high concentrations of atmospheric toxins in Delhi have continued as a significant challenge for more than 15 years, with the problem showing no improvement.

Near the festival period, the amount of hazardous airborne contaminants in the environment has been observed to shoot up to 70% higher the worst records ever recorded in Beijing, which was formerly considered as the world's most polluted city.

Diverse Pollution Sources

This crisis in the capital is caused by a mix of various sources including heavy vehicle emissions, construction debris, building projects, garbage fires and pollutants from farm burning in neighbouring areas of Punjab and Haryana.

In these regions, rural residents regularly ignite agricultural waste to prepare for next season, producing toxic smog that then gets trapped over the capital as colder air descends.

Medical and Economic Consequences

Both financial and medical impact on the nearly 33 million people living in the metropolitan zone is significant, according to various studies.

The contaminated air leads to high levels of nervous system, cardiovascular and breathing diseases, and can even lead to oncological diseases.

Air quality crisis is calculated to be accounting for ten thousand untimely mortalities each year in the capital.