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Tuesday brought residents of the world's most polluted city were faced with inhaling extremely polluted air that fell into the "critical" category.

Record-Breaking Air Quality Levels

Multiple areas of the capital recorded an air quality index above 500, which translates to 10x the safe limit recommended by the WHO.

Particular areas, concentrations of dangerous airborne particles reached peaks of 1,800, amounting to 15-20x higher than safe levels.

Pyrotechnics Ban and New Changes

Since 2020, officials had implemented a comprehensive restriction on the purchase and ignition of fireworks during the Festival of Lights due to their substantial impact to the dangerous smog that blankets the metropolis as the cold season sets in.

However recently, the current regional leadership appealed to the judicial authority to seek a relaxation of the ban.

They proposed allowing "green crackers" – previously criticized by environmental experts as being only roughly 30 percent less polluting – as a balance between "cultural practices and public health".

Judicial Ruling and Implementation

Despite concerns of environmental and health campaigners, the court agreed to the proposal, mandating that environmentally conscious fireworks could be used during specific time windows throughout the celebrations.

Throughout the festival evening, there was considerable disregard of the time restrictions across the city, with little regulation regarding whether the pyrotechnics being used were actually the supposedly greener type.

Many recording stations throughout the capital registered pollution reaching highest levels around the night hours to extremely hazardous measurements observed during the festival in at least the past three years.

International Effects

The widespread use of pyrotechnics during the festival also triggered a blame game with neighbouring the neighboring country, with authorities in Pakistan's the Punjab region pointing to deteriorating air quality in their urban centers on contaminants originating in across the border following the festivities.

Chronic Environmental Problem

Extremely elevated readings of pollution in the capital have persisted as a major challenge for fifteen-plus years, with the situation gradually deteriorating.

Around celebratory seasons, the concentration of hazardous airborne contaminants in the air has been observed to shoot up to seventy percent above the worst records ever documented in China's capital, which was previously viewed as the world's most polluted metropolis.

Multiple Contamination Contributors

This crisis in Delhi is attributed to a mix of various sources including heavy vehicle emissions, airborne particles, building projects, waste incineration and pollutants from farm burning in adjacent states of neighboring agricultural zones.

In these regions, farmers illegally ignite agricultural waste to expedite field preparation, producing dangerous pollution that becomes contained over the capital as winter air arrives.

Public Health and Financial Toll

The economic and health impact on the nearly 33 million people living in the metropolitan zone is significant, according to various investigations.

These hazardous conditions causes high levels of neurological, heart and circulatory and breathing conditions, and can potentially cause cancer.

Environmental contamination is calculated to be accounting for approximately 10k premature deaths each year in Delhi.