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Tuesday brought residents of this heavily contaminated metropolis were faced with exposed to extremely polluted air that was classified as the "severe" range.

Record-Breaking Pollution Measurements

Various sections of the city registered an air quality index above 500, which equals a tenfold increase over the safe threshold established by the WHO.

In some locations, readings of toxic particulate matter hit highs of 1800, representing 15-20x exceeding healthy limits.

Fireworks Ban and New Developments

Beginning in 2020, the government had implemented a total prohibition on the sale and use of pyrotechnics during the Festival of Lights due to their substantial impact to the hazardous pollution that blankets the capital as winter approaches.

Yet recently, the newly elected local government appealed to the supreme court to request a relaxation of the prohibition.

Officials advocated for allowing "green crackers" – historically doubted by conservation groups as being only about 30% reduced emissions – as a balance between "heritage and ecological concerns".

Judicial Decision and Reality

Despite concerns of environmental and health advocates, the court agreed to the proposal, stipulating that environmentally conscious fireworks could be used during designated periods throughout the Diwali.

During the celebrations, there was widespread disregard of the designated hours across the city, with little regulation regarding whether the fireworks being used were actually the more environmentally friendly version.

Numerous monitoring devices throughout the city showed contamination peaking around late evening to extremely hazardous measurements observed during Diwali in at least recent memory.

Cross-Border Implications

The proliferation of fireworks during Diwali also sparked a controversy with bordering the neighboring country, with authorities in Pakistani the Punjab region pointing to declining atmospheric conditions in Lahore on pollutants coming from India following the celebrations.

Persistent Environmental Problem

Extremely elevated levels of air contamination in the capital have continued as a significant issue for fifteen-plus years, with the situation continuing to worsen.

Around celebratory seasons, the amount of hazardous particles in the atmosphere has been found to shoot up to 70% higher the worst readings ever documented in Beijing, which was formerly viewed as the globally most contaminated urban center.

Diverse Contamination Factors

The problem in the city is resulting from a convergence of various sources including heavy vehicle emissions, dust, construction activities, rubbish burning and pollutants from agricultural fires in neighbouring areas of farming communities.

Within these states, farmers regularly set their fields on fire to expedite field preparation, creating dangerous haze that remains stagnant over the capital as colder air sets in.

Health and Financial Consequences

Both financial and medical consequences on the approximately 33 million residents living in the Delhi area is significant, according to numerous studies.

This pollution results in elevated rates of neurological, heart and circulatory and breathing conditions, and can potentially cause malignancies.

Air quality crisis is projected to be causing approximately 10k early deaths each year in the capital.