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As Tuesday dawned inhabitants of the world's most polluted city encountered exposed to extremely polluted air that was classified as the "critical" range.

Record-Breaking Pollution Readings

Multiple areas of the capital recorded an AQI above 500, which represents ten times the safe level established by the global health authority.

Certain monitoring stations, readings of dangerous airborne particles reached peaks of 1800, representing 15 to 20 times above acceptable standards.

Fireworks Prohibition and Recent Changes

Since 2020, the government had enforced a comprehensive restriction on the purchase and ignition of pyrotechnics during the Festival of Lights due to their substantial impact to the deadly smog that blankets the capital as the cold season approaches.

However recently, the recently formed regional administration approached the supreme court to seek a easing of the ban.

They proposed allowing "eco-friendly fireworks" – historically doubted by environmentalists as being only approximately one-third lower impact – as a balance between "cultural practices and environment".

Legal Decision and Reality

To the disappointment of medical and ecological activists, judicial authorities approved the request, specifying that environmentally conscious fireworks could be used during designated time windows throughout the festival.

Throughout the festival evening, there was considerable violation of the designated hours across the metropolis, with little regulation regarding whether the fireworks being used were actually the more environmentally friendly type.

Numerous monitoring devices throughout Delhi recorded contamination reaching highest levels around midnight to the most severe readings seen during celebrations in at least recent memory.

International Implications

The proliferation of fireworks during Diwali also triggered a controversy with adjacent the neighboring country, with officials in Pakistan's Punjab province partly blaming worsening pollution levels in Lahore on hazardous particles coming from India following the celebrations.

Persistent Pollution Problem

Extremely elevated levels of pollution in the city have persisted as a significant issue for more than 15 years, with the problem continuing to worsen.

During Diwali, the levels of dangerous particles in the air has been documented to increase dramatically to 70% higher the worst records ever documented in Beijing, which was once considered as the globally most contaminated urban center.

Multiple Contamination Contributors

The problem in Delhi is attributed to a mix of different contributors including automobile exhaust, dust, development work, garbage fires and haze from crop residue ignition in neighbouring states of Punjab and Haryana.

In these regions, rural residents illegally ignite agricultural waste to prepare for next season, generating hazardous pollution that becomes contained over the metropolitan area as cooler air arrives.

Public Health and Economic Impact

The economic and health impact on the approximately 33 million people calling home the capital region is substantial, according to various studies.

This pollution results in increased incidence of neurological, cardiovascular and respiratory diseases, and can even lead to malignancies.

Environmental contamination is calculated to be responsible for approximately 10k early fatalities per year in the city.