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Tuesday brought citizens of the world's most polluted city encountered breathing severely hazardous air that fell into the "severe" level.

Extremely High Air Quality Readings

Several parts of the capital registered an air quality index above 500, which translates to a tenfold increase over the recommended threshold recommended by the WHO.

Certain monitoring stations, concentrations of toxic particulate matter soared to of 1,800, amounting to 15-20x higher than healthy standards.

Fireworks Restrictions and New Changes

Beginning in 2020, authorities had implemented a comprehensive restriction on the sale and use of fireworks during celebrations due to their substantial impact to the deadly pollution that blankets the capital as winter approaches.

However in recent months, the current city government petitioned the judicial authority to seek a relaxation of the prohibition.

The suggestion was allowing "green crackers" – previously questioned by environmentalists as being only about 30% less polluting – as a middle ground between "cultural practices and ecological concerns".

Judicial Decision and Enforcement

Despite concerns of environmental and health advocates, judicial authorities complied with the proposal, mandating that environmentally conscious fireworks could be ignited during limited time windows throughout the Diwali.

Throughout the festival evening, there was widespread disregard of the time restrictions across the capital, with insufficient monitoring regarding whether the fireworks being used were actually the more environmentally friendly type.

Numerous monitoring devices throughout Delhi recorded pollution reaching highest levels around late evening to extremely hazardous levels recorded during Diwali in at least the past three years.

Regional Consequences

Extensive ignition of fireworks during Diwali also triggered a controversy with adjacent the neighboring country, with authorities in Pakistani Punjab pointing to deteriorating atmospheric conditions in their urban centers on pollutants traveling from neighboring India following the festivities.

Persistent Pollution Problem

Alarmingly severe readings of atmospheric toxins in the city have remained as a major challenge for over a decade and a half, with the problem showing no improvement.

During Diwali, the concentration of hazardous particles in the environment has been found to shoot up to seventy percent above the most severe records ever documented in China's capital, which was previously regarded as the globally most contaminated urban center.

Diverse Contamination Sources

The problem in Delhi is attributed to a mix of multiple factors including automobile exhaust, construction debris, construction activities, garbage fires and haze from crop residue ignition in nearby states of farming communities.

In these regions, rural residents regularly burn crop residue to prepare for next season, producing toxic haze that becomes contained over the city as colder air descends.

Medical and Financial Toll

Public health and economic consequences on the nearly 33 million people living in the Delhi area is significant, according to multiple research.

This pollution leads to high levels of neurological, cardiovascular and breathing conditions, and can potentially cause oncological diseases.

Air quality crisis is projected to be accounting for ten thousand premature fatalities annually in Delhi.