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On Tuesday morning citizens of the planet's dirtiest urban center found themselves breathing severely hazardous air that was classified as the "critical" category.

Extremely High Air Quality Readings

Several parts of the capital registered an AQI above 500, which equals 10x the safe limit set by the WHO.

In some locations, concentrations of dangerous airborne particles soared to of eighteen hundred, representing fifteen to twenty times exceeding healthy levels.

Firecracker Ban and Recent Policy Shifts

Beginning in 2020, the government had enforced a complete ban on the distribution and bursting of fireworks during celebrations due to their substantial impact to the dangerous haze that blankets the metropolis as winter approaches.

However in recent months, the recently formed regional government petitioned the supreme court to seek a modification of the ban.

Officials advocated for allowing "environmentally conscious pyrotechnics" – which have been questioned by environmentalists as being only about 30% reduced emissions – as a balance between "tradition and environment".

Court Decision and Reality

Despite concerns of public health and environmental activists, judicial authorities complied with the appeal, mandating that green firecrackers could be set off during designated hours throughout the Diwali.

Throughout the festival evening, there was considerable violation of the regulated periods across the capital, with minimal regulation regarding whether the pyrotechnics being used were actually the more environmentally friendly version.

Several monitoring devices throughout the capital recorded air quality peaking around late evening to extremely hazardous readings seen during Diwali in at least three years.

Cross-Border Consequences

Extensive ignition of firecrackers during the festival also initiated a controversy with neighbouring the neighboring country, with officials in Pakistani Punjab pointing to worsening air quality in Lahore on pollutants originating in neighboring India following the festivities.

Chronic Pollution Crisis

The dangerously high readings of atmospheric toxins in Delhi have persisted as a major problem for more than 15 years, with the situation continuing to worsen.

During the festival period, the levels of hazardous airborne contaminants in the environment has been observed to shoot up to 70% higher the worst levels ever recorded in the Chinese city, which was formerly regarded as the globally most contaminated urban center.

Diverse Contamination Contributors

The problem in Delhi is attributed to a mix of various sources including transportation pollution, airborne particles, development work, garbage fires and smoke from farm burning in adjacent areas of Punjab and Haryana.

In these regions, farmers illegally set their fields on fire to prepare for next season, producing toxic smog that remains stagnant over the capital as colder air sets in.

Health and Financial Impact

Both financial and medical toll on the nearly 33 million people residing in the Delhi area is significant, according to multiple studies.

These hazardous conditions leads to high levels of nervous system, cardiovascular and breathing diseases, and can potentially cause oncological diseases.

Air quality crisis is estimated to be causing approximately 10k early deaths each year in the capital.