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As Tuesday dawned inhabitants of the planet's dirtiest urban center encountered inhaling extremely polluted air that was classified as the "critical" range.

Alarming Air Quality Levels

Several parts of the city showed an AQI exceeding 500, which equals 10x the healthy level set by the global health authority.

In some locations, readings of dangerous airborne particles hit highs of 1,800, representing fifteen to twenty times above healthy limits.

Firecracker Prohibition and Current Policy Shifts

Since 2020, the government had enforced a total prohibition on the sale and use of firecrackers during Diwali due to their major role to the dangerous smog that engulfs the metropolis as the cold season approaches.

However in recent months, the current regional administration approached the highest court to seek a modification of the prohibition.

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

Legal Ruling and Enforcement

To the disappointment of medical and ecological activists, the court complied with the request, mandating that eco-friendly pyrotechnics could be used during designated periods throughout the Diwali.

During the celebrations, there was extensive violation of the designated hours across the capital, with little enforcement regarding whether the fireworks being used were actually the eco-friendly version.

Many recording stations throughout Delhi registered pollution reaching highest levels around late evening to extremely hazardous readings observed during celebrations in at least the past three years.

Cross-Border Effects

The proliferation of fireworks during the celebrations also sparked a blame game with adjacent Pakistan, with representatives in Pakistani the Punjab region partially attributing worsening atmospheric conditions in the city of Lahore on contaminants traveling from across the border following the celebrations.

Long-Standing Environmental Issue

The dangerously high readings of atmospheric toxins in Delhi have persisted as a major challenge for over a decade and a half, with the situation gradually deteriorating.

Near Diwali, the levels of dangerous particulate matter in the air has been observed to spike to 70% higher the most severe levels ever documented in China's capital, which was previously viewed as the world's most polluted metropolis.

Diverse Pollution Sources

The situation in the city is attributed to a combination of multiple factors including automobile exhaust, dust, development work, waste incineration and smoke from farm burning in nearby areas of farming communities.

In these regions, agricultural workers illegally set their fields on fire to expedite field preparation, creating hazardous pollution that then gets trapped over the city as winter air arrives.

Medical and Financial Toll

Both financial and medical consequences on the roughly thirty-three million residents living in the metropolitan zone is substantial, according to multiple research.

These hazardous conditions causes elevated rates of nervous system, heart and circulatory and lung diseases, and can potentially cause oncological diseases.

Air quality crisis is calculated to be responsible for ten thousand untimely mortalities each year in the capital.