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As Tuesday dawned residents of the world's most polluted city encountered exposed to extremely polluted air that fell into the "severe" category.

Extremely High Air Quality Measurements

Various sections of the city showed an pollution measurement exceeding 500, which represents a tenfold increase over the recommended limit recommended by the World Health Organization.

Particular areas, concentrations of PM2.5 and PM10 hit highs of 1800, representing 15-20x above safe levels.

Firecracker Prohibition and Recent Developments

Since 2020, authorities had enforced a comprehensive restriction on the distribution and bursting of fireworks during celebrations due to their substantial impact to the dangerous haze that engulfs the city as colder weather approaches.

However in recent months, the newly elected regional leadership appealed to the supreme court to request a modification of the prohibition.

Officials advocated for allowing "green crackers" – previously questioned by environmentalists as being only about 30% less polluting – as a balance between "tradition and environment".

Legal Verdict and Reality

Despite concerns of environmental and health campaigners, the court approved the request, mandating that eco-friendly pyrotechnics could be set off during specific periods throughout the festival.

Throughout the festival evening, there was considerable flouting of the designated hours across the capital, with little enforcement regarding whether the firecrackers being used were actually the supposedly greener version.

Many air quality sensors throughout Delhi showed pollution spiking around late evening to the most severe readings seen during the festival in at least recent memory.

Cross-Border Consequences

Extensive ignition of firecrackers during Diwali also sparked a blame game with adjacent the neighboring country, with representatives in Pakistani Punjab pointing to deteriorating pollution levels in their urban centers on hazardous particles originating in across the border following the events.

Chronic Environmental Issue

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

During the festival period, the concentration of toxic airborne contaminants in the atmosphere has been found to spike to significantly exceeding the most severe levels ever recorded in China's capital, which was formerly considered as the globally most contaminated metropolis.

Diverse Contamination Contributors

This crisis in the city is caused by a combination of different contributors including transportation pollution, construction debris, building projects, garbage fires and haze from agricultural fires in nearby states of Punjab and Haryana.

Throughout these areas, rural residents routinely ignite agricultural waste to clear them quickly, creating toxic smog that becomes contained over the capital as winter air arrives.

Public Health and Economic Impact

The economic and health consequences on the nearly 33 million residents calling home the metropolitan zone is enormous, according to various research.

These hazardous conditions leads to high levels of nervous system, cardiovascular and breathing conditions, and can even lead to malignancies.

Air quality crisis is calculated to be responsible for approximately 10k early mortalities annually in the capital.