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On Tuesday morning residents of this heavily contaminated metropolis found themselves exposed to extremely polluted air that was classified as the "severe" level.

Alarming Air Quality Levels

Several parts of Delhi registered an air quality index above 500, which represents a tenfold increase over the healthy threshold set by the WHO.

In some locations, readings of toxic particulate matter hit highs of 1,800, amounting to fifteen to twenty times higher than acceptable limits.

Pyrotechnics Prohibition and Current Changes

Beginning in 2020, officials had maintained a comprehensive restriction on the sale and use of pyrotechnics during Diwali due to their major role to the hazardous haze that covers the metropolis as the cold season approaches.

Nevertheless recently, the recently formed local administration approached the supreme court to seek a easing of the ban.

Officials advocated for allowing "eco-friendly fireworks" – which have been questioned by conservation groups as being only roughly 30 percent reduced emissions – as a middle ground between "cultural practices and ecological concerns".

Judicial Decision and Implementation

Much to the frustration of medical and ecological campaigners, judicial authorities complied with the appeal, stipulating that environmentally conscious fireworks could be used during specific time windows throughout the Diwali.

During the celebrations, there was extensive disregard of the designated hours across the city, with little enforcement regarding whether the pyrotechnics being used were actually the eco-friendly type.

Many recording stations throughout Delhi registered contamination spiking around late evening to some of the worst measurements recorded during celebrations in at least recent memory.

Cross-Border Implications

The proliferation of fireworks during the celebrations also initiated a blame game with bordering the neighboring country, with officials in Pakistani Punjab province partially attributing deteriorating atmospheric conditions in Lahore on pollutants originating in across the border following the festivities.

Long-Standing Pollution Crisis

The dangerously high levels of atmospheric toxins in the capital have persisted as a major problem for over a decade and a half, with the problem showing no improvement.

During celebratory seasons, the levels of hazardous airborne contaminants in the atmosphere has been found to shoot up to seventy percent above the worst readings ever documented in Beijing, which was formerly viewed as the world's most polluted metropolis.

Multiple Pollution Contributors

The problem in Delhi is resulting from a combination of multiple factors including automobile exhaust, construction debris, construction activities, rubbish burning and smoke from crop residue ignition in adjacent states of neighboring agricultural zones.

Throughout these areas, rural residents routinely set their fields on fire to prepare for next season, producing dangerous haze that remains stagnant over the metropolitan area as winter air arrives.

Public Health and Financial Toll

Both financial and medical impact on the approximately 33 million residents residing in the Delhi area is significant, according to various studies.

This pollution results in elevated rates of neurological, heart and circulatory and respiratory diseases, and can even lead to cancer.

The pollution is calculated to be responsible for 10,000 untimely fatalities each year in the capital.