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On Tuesday morning residents of the world's most polluted city found themselves breathing severely hazardous air that registered in the "alarming" range.

Record-Breaking Air Quality Readings

Multiple areas of the capital registered an air quality index over 500, which equals a tenfold increase over the healthy threshold recommended by the global health authority.

Particular areas, readings of dangerous airborne particles reached peaks of 1,800, equating to 15-20x above safe standards.

Pyrotechnics Prohibition and Recent Policy Shifts

Beginning in 2020, authorities had enforced a complete ban on the distribution and bursting of fireworks during Diwali due to their significant contribution to the hazardous pollution that engulfs the capital as colder weather begins.

Nevertheless earlier this year, the recently formed local leadership approached the judicial authority to propose a modification of the prohibition.

They proposed allowing "eco-friendly fireworks" – historically criticized by environmental experts as being only about 30% less polluting – as a balance between "cultural practices and public health".

Court Verdict and Enforcement

Much to the frustration of public health and environmental advocates, the court complied with the appeal, stipulating that environmentally conscious fireworks could be set off during limited hours throughout the festival.

Throughout the festival evening, there was extensive violation of the time restrictions across the city, with little monitoring regarding whether the firecrackers being used were actually the eco-friendly version.

Numerous recording stations throughout the city recorded pollution peaking around late evening to extremely hazardous levels recorded during Diwali in at least the past three years.

International Consequences

The proliferation of firecrackers during the celebrations also triggered a dispute with bordering the neighboring country, with authorities in Pakistan's the Punjab region partially attributing deteriorating air quality in Lahore on pollutants originating in neighboring India following the festivities.

Persistent Pollution Crisis

Extremely elevated concentrations of air contamination in the city have continued as a serious problem for over a decade and a half, with the situation gradually deteriorating.

Near Diwali, the amount of hazardous airborne contaminants in the atmosphere has been observed to shoot up to seventy percent above the worst levels ever recorded in Beijing, which was previously viewed as the globally most contaminated urban center.

Diverse Contamination Sources

The problem in Delhi is caused by a combination of various sources including transportation pollution, construction debris, building projects, rubbish burning and haze from crop residue ignition in adjacent states of farming communities.

In these regions, farmers regularly ignite agricultural waste to prepare for next season, generating hazardous pollution that then gets trapped over the city as winter air descends.

Public Health and Financial Impact

Public health and economic toll on the approximately 33 million inhabitants residing in the capital region is significant, according to multiple studies.

This pollution causes elevated rates of neurological, heart and circulatory and respiratory disorders, and can even lead to oncological diseases.

Environmental contamination is estimated to be responsible for ten thousand untimely fatalities each year in the capital.