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On Tuesday morning residents of this heavily contaminated metropolis were faced with exposed to severely hazardous air that fell into the "severe" level.

Extremely High Pollution Measurements

Several parts of the capital registered an AQI exceeding 500, which represents ten times the safe threshold established by the World Health Organization.

Certain monitoring stations, concentrations of toxic particulate matter hit highs of 1,800, amounting to 15 to 20 times above safe levels.

Pyrotechnics Prohibition and New Developments

Beginning in 2020, the government had implemented a complete ban on the sale and use of fireworks during the Festival of Lights due to their substantial impact to the dangerous pollution that covers the capital as the cold season begins.

Yet recently, the recently formed city administration petitioned the highest court to request a relaxation of the prohibition.

The suggestion was allowing "eco-friendly fireworks" – previously criticized by conservation groups as being only roughly 30 percent less polluting – as a balance between "cultural practices and ecological concerns".

Judicial Decision and Implementation

Much to the frustration of medical and ecological advocates, the court approved the proposal, specifying that green firecrackers could be ignited during designated periods throughout the Diwali.

Throughout the festival evening, there was extensive violation of the regulated periods across the city, with little enforcement regarding whether the fireworks being used were actually the eco-friendly variety.

Several monitoring devices throughout the city registered contamination spiking around the night hours to extremely hazardous levels recorded during celebrations in at least recent memory.

International Effects

The proliferation of firecrackers during the celebrations also triggered a dispute with neighbouring the neighboring country, with authorities in Pakistani Punjab province partly blaming declining air quality in Lahore on pollutants traveling from neighboring India following the events.

Long-Standing Environmental Issue

Alarmingly severe readings of pollution in Delhi have continued as a serious challenge for fifteen-plus years, with the condition continuing to worsen.

Near celebratory seasons, the levels of hazardous particles in the environment has been found to spike to significantly exceeding the worst records ever documented in Beijing, which was previously viewed as the globally most contaminated urban center.

Various Pollution Sources

This crisis in the city is attributed to a convergence of various sources including transportation pollution, dust, construction activities, garbage fires and smoke from crop residue ignition in neighbouring states of farming communities.

Within these states, rural residents routinely burn crop residue to expedite field preparation, generating hazardous pollution that remains stagnant over the capital as cooler air sets in.

Public Health and Financial Consequences

Public health and economic consequences on the nearly 33 million residents residing in the metropolitan zone is significant, according to various investigations.

This pollution results in elevated rates of neurological, heart and circulatory and lung conditions, and can even lead to malignancies.

Air quality crisis is projected to be accounting for ten thousand untimely fatalities each year in the city.