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On Tuesday morning inhabitants of the planet's dirtiest urban center were faced with inhaling dangerously toxic air that registered in the "critical" category.

Record-Breaking Pollution Readings

Various sections of the capital showed an AQI above 500, which equals a tenfold increase over the healthy limit set by the WHO.

In some locations, concentrations of dangerous airborne particles hit highs of 1,800, amounting to 15-20x exceeding acceptable limits.

Pyrotechnics Prohibition and Recent Policy Shifts

Since 2020, the government had maintained a complete ban on the purchase and ignition of firecrackers during celebrations due to their major role to the dangerous smog that covers the city as winter begins.

Nevertheless recently, the newly elected regional leadership appealed to the supreme court to request a relaxation of the prohibition.

The suggestion was allowing "green crackers" – which have been doubted by environmental experts as being only roughly 30 percent less polluting – as a balance between "cultural practices and public health".

Legal Verdict and Reality

To the disappointment of medical and ecological campaigners, judges agreed to the request, stipulating that environmentally conscious fireworks could be set off during designated time windows throughout the festival.

On Monday night, there was extensive violation of the regulated periods across the city, with insufficient enforcement regarding whether the firecrackers being used were actually the supposedly greener version.

Several air quality sensors throughout the capital showed pollution peaking around the night hours to extremely hazardous levels observed during the festival in at least the past three years.

International Effects

The widespread use of fireworks during the celebrations also initiated a dispute with adjacent Pakistan, with officials in Pakistani Punjab province partially attributing deteriorating atmospheric conditions in their urban centers on hazardous particles originating in India following the festivities.

Long-Standing Pollution Crisis

Alarmingly severe readings of atmospheric toxins in the capital have persisted as a major challenge for fifteen-plus years, with the problem gradually deteriorating.

Around Diwali, the amount of hazardous particulate matter in the air has been observed to spike to significantly exceeding the worst records ever measured in the Chinese city, which was previously considered as the world's most polluted metropolis.

Diverse Pollution Contributors

The problem in Delhi is resulting from a mix of various sources including automobile exhaust, construction debris, building projects, rubbish burning and pollutants from crop residue ignition in neighbouring states of neighboring agricultural zones.

Throughout these areas, farmers illegally burn crop residue to expedite field preparation, generating dangerous pollution that remains stagnant over the capital as colder air arrives.

Public Health and Economic Consequences

Both financial and medical consequences on the roughly thirty-three million inhabitants living in the capital region is significant, according to various investigations.

These hazardous conditions results in increased incidence of nervous system, heart and circulatory and breathing conditions, and can potentially cause cancer.

The pollution is estimated to be accounting for approximately 10k untimely fatalities per year in the city.