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On Tuesday morning residents of this heavily contaminated metropolis encountered breathing extremely polluted air that fell into the "severe" category.

Alarming Air Quality Readings

Various sections of the city showed an air quality index exceeding 500, which represents ten times the healthy limit set by the World Health Organization.

In some locations, readings of PM2.5 and PM10 reached peaks of eighteen hundred, amounting to 15-20x higher than safe limits.

Fireworks Prohibition and New Policy Shifts

Beginning in 2020, officials had maintained a total prohibition on the distribution and bursting of firecrackers during the Festival of Lights due to their substantial impact to the dangerous haze that blankets the city as the cold season begins.

However recently, the newly elected local leadership approached the supreme court to propose a modification of the prohibition.

The suggestion was allowing "green crackers" – historically questioned by environmentalists as being only roughly 30 percent reduced emissions – as a balance between "cultural practices and ecological concerns".

Court Verdict and Enforcement

To the disappointment of public health and environmental activists, judges complied with the request, specifying that green firecrackers could be used during designated hours throughout the festival.

On Monday night, there was extensive flouting of the designated hours across the city, with little monitoring regarding whether the fireworks being used were actually the more environmentally friendly version.

Numerous monitoring devices throughout the capital recorded pollution spiking around late evening to some of the worst levels recorded during celebrations in at least three years.

Regional Consequences

Extensive ignition of pyrotechnics during the festival also sparked a dispute with bordering Pakistan, with representatives in Pakistan's the Punjab region partially attributing deteriorating atmospheric conditions in Lahore on contaminants coming from across the border following the festivities.

Long-Standing Environmental Issue

Extremely elevated levels of atmospheric toxins in the capital have persisted as a significant issue for more than 15 years, with the situation showing no improvement.

Near the festival period, the amount of hazardous particles in the environment has been observed to increase dramatically to significantly exceeding the peak readings ever documented in the Chinese city, which was formerly considered as the globally most contaminated metropolis.

Multiple Pollution Contributors

The situation in Delhi is resulting from a combination of different contributors including automobile exhaust, construction debris, development work, waste incineration and smoke from crop residue ignition in adjacent areas of neighboring agricultural zones.

In these regions, rural residents routinely burn crop residue to expedite field preparation, producing toxic smog that remains stagnant over the metropolitan area as cooler air descends.

Health and Economic Impact

Both financial and medical toll on the nearly 33 million inhabitants living in the metropolitan zone is significant, according to multiple investigations.

This pollution causes elevated rates of neurological, cardiovascular and lung conditions, and can potentially cause cancer.

Environmental contamination is estimated to be causing ten thousand untimely fatalities annually in the capital.