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As Tuesday dawned citizens of this heavily contaminated metropolis found themselves inhaling extremely polluted air that fell into the "severe" level.

Extremely High Air Quality Readings

Several parts of the city registered an pollution measurement exceeding 500, which equals 10x the recommended threshold recommended by the WHO.

In some locations, levels of toxic particulate matter hit highs of eighteen hundred, representing fifteen to twenty times higher than healthy levels.

Pyrotechnics Ban and Current Developments

Beginning in 2020, authorities had enforced a comprehensive restriction on the sale and use of fireworks during the Festival of Lights due to their substantial impact to the dangerous smog that covers the city as the cold season begins.

However recently, the current regional administration petitioned the highest court to propose a easing of the ban.

Officials advocated for allowing "green crackers" – previously questioned by environmentalists as being only about 30% reduced emissions – as a balance between "tradition and ecological concerns".

Judicial Ruling and Enforcement

To the disappointment of environmental and health campaigners, judges approved the appeal, specifying that green firecrackers could be ignited during specific hours throughout the celebrations.

During the celebrations, there was extensive disregard of the designated hours across the city, with insufficient enforcement regarding whether the firecrackers being used were actually the supposedly greener variety.

Many recording stations throughout the capital registered contamination reaching highest levels around the night hours to extremely hazardous measurements seen during the festival in at least the past three years.

International Consequences

The widespread use of firecrackers during the celebrations also triggered a controversy with neighbouring Pakistan, with officials in Pakistan's Punjab partially attributing worsening air quality in the city of Lahore on pollutants originating in across the border following the events.

Chronic Environmental Crisis

Alarmingly severe concentrations of pollution in the city have persisted as a major challenge for over a decade and a half, with the situation showing no improvement.

Near celebratory seasons, the concentration of hazardous airborne contaminants in the air has been found to spike to 70% higher the worst records ever measured in the Chinese city, which was formerly viewed as the planet's dirtiest metropolis.

Various Contamination Contributors

This crisis in Delhi is caused by a combination of various sources including heavy vehicle emissions, airborne particles, development work, rubbish burning and haze from crop residue ignition in adjacent areas of neighboring agricultural zones.

Throughout these areas, rural residents illegally burn crop residue to clear them quickly, creating hazardous pollution that then gets trapped over the city as cooler air descends.

Public Health and Financial Impact

Both financial and medical toll on the approximately 33 million inhabitants living in the Delhi area is substantial, according to various studies.

This pollution results in increased incidence of neurological, cardiovascular and lung diseases, and can even lead to oncological diseases.

Air quality crisis is estimated to be accounting for ten thousand untimely deaths each year in Delhi.