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On Tuesday morning inhabitants of the world's most polluted city encountered exposed to extremely polluted air that fell into the "critical" range.

Alarming Air Quality Measurements

Various sections of the city recorded an pollution measurement above 500, which represents a tenfold increase over the recommended level set by the global health authority.

Certain monitoring stations, concentrations of toxic particulate matter soared to of 1800, representing 15-20x exceeding acceptable limits.

Pyrotechnics Restrictions and New Developments

Beginning in 2020, officials had maintained a comprehensive restriction on the purchase and ignition of pyrotechnics during Diwali due to their significant contribution to the hazardous pollution that blankets the metropolis as the cold season sets in.

Yet in recent months, the recently formed local administration petitioned the highest court to seek a relaxation of the prohibition.

The suggestion was allowing "eco-friendly fireworks" – historically questioned by environmentalists as being only about 30% less polluting – as a compromise between "tradition and ecological concerns".

Court Decision and Enforcement

To the disappointment of medical and ecological activists, judicial authorities approved the appeal, mandating that environmentally conscious fireworks could be ignited during designated hours throughout the Diwali.

Throughout the festival evening, there was extensive flouting of the designated hours across the city, with insufficient enforcement regarding whether the firecrackers being used were actually the eco-friendly version.

Many recording stations throughout Delhi recorded contamination reaching highest levels around midnight to the most severe measurements recorded during the festival in at least three years.

International Implications

The widespread use of firecrackers during Diwali also triggered a blame game with bordering Pakistan, with officials in Pakistani Punjab province pointing to declining air quality in their urban centers on hazardous particles originating in across the border following the festivities.

Long-Standing Pollution Issue

Alarmingly severe levels of air contamination in the capital have remained as a significant issue for more than 15 years, with the situation gradually deteriorating.

Around celebratory seasons, the concentration of hazardous particles in the air has been documented to spike to 70% higher the worst records ever measured in Beijing, which was once viewed as the planet's dirtiest city.

Diverse Contamination Contributors

The situation in the capital is attributed to a convergence of various sources including automobile exhaust, construction debris, construction activities, waste incineration and smoke from agricultural fires in neighbouring areas of neighboring agricultural zones.

Throughout these areas, rural residents illegally set their fields on fire to clear them quickly, producing toxic pollution that becomes contained over the city as winter air descends.

Medical and Economic Consequences

Public health and economic toll on the nearly 33 million inhabitants living in the capital region is substantial, according to multiple studies.

The contaminated air results in increased incidence of neurological, heart and circulatory and lung diseases, and can even lead to oncological diseases.

Air quality crisis is projected to be causing ten thousand untimely fatalities per year in the capital.