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Tuesday brought inhabitants of the planet's dirtiest urban center found themselves exposed to extremely polluted air that registered in the "critical" category.

Record-Breaking Pollution Readings

Several parts of Delhi registered an air quality index above 500, which translates to 10x the healthy threshold recommended by the WHO.

Particular areas, concentrations of dangerous airborne particles reached peaks of eighteen hundred, equating to fifteen to twenty times above healthy levels.

Firecracker Restrictions and Current Developments

Beginning in 2020, the government had implemented a complete ban on the distribution and bursting of firecrackers during the Festival of Lights due to their substantial impact to the dangerous smog that covers the metropolis as winter approaches.

Nevertheless recently, the recently formed regional administration petitioned the highest court to propose a modification of the restrictions.

The suggestion was allowing "eco-friendly fireworks" – which have been criticized by environmental experts as being only about 30% reduced emissions – as a balance between "tradition and environment".

Court Verdict and Enforcement

To the disappointment of public health and environmental activists, judicial authorities agreed to the appeal, stipulating that green firecrackers could be ignited during designated hours throughout the Diwali.

On Monday night, there was extensive disregard of the designated hours across the metropolis, with minimal regulation regarding whether the pyrotechnics being used were actually the eco-friendly version.

Many monitoring devices throughout the capital registered pollution reaching highest levels around midnight to extremely hazardous readings recorded during Diwali in at least the past three years.

Cross-Border Implications

The proliferation of firecrackers during the celebrations also initiated a blame game with neighbouring Pakistan, with authorities in Pakistan's the Punjab region pointing to worsening pollution levels in their urban centers on contaminants originating in across the border following the festivities.

Persistent Environmental Issue

Alarmingly severe readings of air contamination in the capital have remained as a serious problem for more than 15 years, with the problem gradually deteriorating.

Near the festival period, the levels of toxic airborne contaminants in the air has been found to shoot up to 70% higher the worst records ever measured in Beijing, which was once regarded as the world's most polluted metropolis.

Multiple Contamination Sources

The situation in the city is caused by a combination of various sources including heavy vehicle emissions, dust, construction activities, rubbish burning and smoke from crop residue ignition in neighbouring states of Punjab and Haryana.

Within these states, rural residents routinely ignite agricultural waste to clear them quickly, generating toxic smog that becomes contained over the city as colder air descends.

Public Health and Financial Toll

The economic and health impact on the approximately 33 million inhabitants living in the capital region is substantial, according to multiple research.

These hazardous conditions results in increased incidence of nervous system, cardiovascular and breathing conditions, and can potentially cause malignancies.

Air quality crisis is projected to be accounting for ten thousand early fatalities annually in Delhi.