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On Tuesday morning citizens of the world's most polluted city encountered exposed to severely hazardous air that was classified as the "severe" category.

Extremely High Air Quality Measurements

Various sections of the city registered an pollution measurement over 500, which translates to ten times the healthy threshold recommended by the global health authority.

Particular areas, levels of toxic particulate matter hit highs of eighteen hundred, representing 15-20x higher than healthy standards.

Fireworks Restrictions and Current Changes

Beginning in 2020, officials had implemented a comprehensive restriction on the sale and use of fireworks during celebrations due to their significant contribution to the hazardous smog that blankets the city as winter sets in.

However earlier this year, the newly elected regional leadership appealed to the judicial authority to request a modification of the prohibition.

They proposed allowing "green crackers" – previously questioned by environmentalists as being only roughly 30 percent reduced emissions – as a middle ground between "cultural practices and public health".

Court Verdict and Enforcement

Despite concerns of environmental and health advocates, judicial authorities complied with the proposal, mandating that environmentally conscious fireworks could be ignited during limited hours throughout the festival.

Throughout the festival evening, there was widespread flouting of the time restrictions across the city, with little monitoring regarding whether the firecrackers being used were actually the eco-friendly type.

Many recording stations throughout Delhi recorded air quality reaching highest levels around the night hours to the most severe levels seen during celebrations in at least three years.

Cross-Border Consequences

The widespread use of pyrotechnics during Diwali also sparked a dispute with neighbouring Pakistan, with representatives in Pakistan's the Punjab region partly blaming declining pollution levels in their urban centers on pollutants traveling from across the border following the celebrations.

Chronic Environmental Crisis

The dangerously high concentrations of air contamination in the city have remained as a serious problem for over a decade and a half, with the situation continuing to worsen.

Around Diwali, the amount of hazardous particulate matter in the atmosphere has been documented to shoot up to significantly exceeding the most severe levels ever measured in China's capital, which was formerly considered as the planet's dirtiest urban center.

Multiple Pollution Factors

This crisis in Delhi is caused by a convergence of different contributors including transportation pollution, airborne particles, building projects, garbage fires and pollutants from crop residue ignition in adjacent states of neighboring agricultural zones.

Within these states, agricultural workers illegally ignite agricultural waste to prepare for next season, creating hazardous pollution that becomes contained over the capital as winter air descends.

Medical and Economic Impact

The economic and health impact on the roughly thirty-three million residents calling home the Delhi area is substantial, according to multiple investigations.

This pollution causes high levels of neurological, cardiovascular and respiratory diseases, and can even lead to oncological diseases.

Air quality crisis is calculated to be causing ten thousand untimely deaths per year in Delhi.