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Tuesday brought residents of this heavily contaminated metropolis found themselves exposed to dangerously toxic air that registered in the "critical" level.

Extremely High Pollution Measurements

Various sections of the capital showed an pollution measurement above 500, which translates to 10x the safe threshold recommended by the WHO.

In some locations, concentrations of PM2.5 and PM10 hit highs of 1800, amounting to 15 to 20 times higher than healthy limits.

Fireworks Ban and New Developments

Beginning in 2020, authorities had implemented a comprehensive restriction on the purchase and ignition of pyrotechnics during celebrations due to their major role to the deadly haze that engulfs the city as winter approaches.

However in recent months, the current local government approached the highest court to propose a easing of the restrictions.

They proposed allowing "green crackers" – historically questioned by environmental experts as being only about 30% less polluting – as a compromise between "cultural practices and public health".

Judicial Verdict and Implementation

To the disappointment of environmental and health advocates, judges agreed to the request, mandating that environmentally conscious fireworks could be set off during specific periods throughout the celebrations.

During the celebrations, there was considerable violation of the time restrictions across the city, with little monitoring regarding whether the fireworks being used were actually the more environmentally friendly version.

Many recording stations throughout the city registered air quality peaking around the night hours to extremely hazardous measurements recorded during the festival in at least the past three years.

International Implications

The proliferation of fireworks during the celebrations also triggered a dispute with adjacent Pakistan, with officials in Pakistani Punjab pointing to declining pollution levels in Lahore on contaminants originating in across the border following the events.

Long-Standing Environmental Problem

Extremely elevated readings of pollution in Delhi have continued as a significant problem for fifteen-plus years, with the situation gradually deteriorating.

During the festival period, the amount of hazardous airborne contaminants in the environment has been observed to increase dramatically to 70% higher the peak levels ever documented in Beijing, which was once regarded as the planet's dirtiest city.

Diverse Contamination Sources

This crisis in the capital is resulting from a mix of different contributors including transportation pollution, airborne particles, development work, waste incineration and pollutants from agricultural fires in nearby regions of farming communities.

Throughout these areas, farmers regularly ignite agricultural waste to prepare for next season, generating toxic smog that remains stagnant over the city as winter air sets in.

Medical and Economic Impact

Public health and economic toll on the roughly thirty-three million residents living in the metropolitan zone is substantial, according to multiple studies.

The contaminated air causes elevated rates of nervous system, cardiovascular and lung conditions, and can even lead to malignancies.

Environmental contamination is calculated to be causing 10,000 untimely deaths each year in the capital.