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Tuesday brought residents of this heavily contaminated metropolis found themselves exposed to extremely polluted air that fell into the "alarming" level.

Extremely High Pollution Measurements

Several parts of Delhi registered an pollution measurement over 500, which equals a tenfold increase over the healthy limit recommended by the WHO.

In some locations, readings of dangerous airborne particles reached peaks of eighteen hundred, amounting to 15-20x higher than healthy limits.

Firecracker Restrictions and New Changes

Beginning in 2020, officials had implemented a complete ban on the purchase and ignition of firecrackers during Diwali due to their major role to the hazardous smog that blankets the city as the cold season begins.

Yet earlier this year, the newly elected local leadership appealed to the highest court to request a easing of the ban.

They proposed allowing "eco-friendly fireworks" – historically doubted by environmentalists as being only about 30% reduced emissions – as a balance between "cultural practices and public health".

Court Decision and Enforcement

To the disappointment of medical and ecological campaigners, judges agreed to the appeal, specifying that eco-friendly pyrotechnics could be set off during specific periods throughout the celebrations.

Throughout the festival evening, there was widespread violation of the designated hours across the metropolis, with insufficient regulation regarding whether the firecrackers being used were actually the eco-friendly type.

Numerous monitoring devices throughout Delhi showed air quality reaching highest levels around the night hours to extremely hazardous readings observed during Diwali in at least three years.

International Effects

Extensive ignition of firecrackers during Diwali also triggered a dispute with bordering the neighboring country, with officials in Pakistani Punjab partially attributing worsening pollution levels in their urban centers on contaminants originating in neighboring India following the events.

Persistent Pollution Problem

Alarmingly severe readings of atmospheric toxins in Delhi have continued as a serious problem for more than 15 years, with the situation showing no improvement.

During celebratory seasons, the amount of hazardous particulate matter in the environment has been documented to increase dramatically to 70% higher the peak records ever recorded in the Chinese city, which was previously viewed as the world's most polluted urban center.

Various Contamination Sources

This crisis in the city is resulting from a convergence of different contributors including automobile exhaust, airborne particles, construction activities, waste incineration and pollutants from crop residue ignition in nearby states of farming communities.

In these regions, agricultural workers regularly set their fields on fire to clear them quickly, creating toxic pollution that remains stagnant over the capital as colder air descends.

Medical and Financial Impact

Public health and economic consequences on the approximately 33 million inhabitants residing in the capital region is enormous, according to numerous investigations.

This pollution causes elevated rates of nervous system, cardiovascular and breathing diseases, and can potentially cause cancer.

Air quality crisis is estimated to be causing ten thousand premature deaths per year in the city.