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On Tuesday morning inhabitants of this heavily contaminated metropolis encountered inhaling severely hazardous air that was classified as the "alarming" range.

Alarming Pollution Levels

Multiple areas of the capital registered an AQI above 500, which represents ten times the recommended threshold set by the global health authority.

Certain monitoring stations, levels of toxic particulate matter hit highs of eighteen hundred, amounting to 15 to 20 times exceeding acceptable levels.

Pyrotechnics Ban and Recent Changes

Beginning in 2020, authorities had implemented a total prohibition on the distribution and bursting of pyrotechnics during the Festival of Lights due to their substantial impact to the dangerous smog that covers the capital as the cold season approaches.

Yet recently, the newly elected local administration petitioned the judicial authority to propose a relaxation of the prohibition.

Officials advocated for allowing "environmentally conscious pyrotechnics" – historically questioned by environmentalists as being only roughly 30 percent reduced emissions – as a balance between "tradition and environment".

Legal Decision and Implementation

Despite concerns of environmental and health activists, the court approved the proposal, specifying that eco-friendly pyrotechnics could be set off during limited hours throughout the Diwali.

During the celebrations, there was considerable disregard of the time restrictions across the city, with minimal regulation regarding whether the fireworks being used were actually the supposedly greener variety.

Many air quality sensors throughout Delhi registered contamination spiking around late evening to some of the worst levels recorded during the festival in at least three years.

Cross-Border Consequences

Extensive ignition of firecrackers during Diwali also sparked a dispute with adjacent the neighboring country, with representatives in Pakistani Punjab partly blaming worsening pollution levels in their urban centers on pollutants coming from India following the celebrations.

Long-Standing Environmental Problem

Alarmingly severe concentrations of pollution in Delhi have persisted as a serious challenge for fifteen-plus years, with the problem continuing to worsen.

During celebratory seasons, the levels of dangerous particulate matter in the air has been found to shoot up to 70% higher the most severe levels ever measured in China's capital, which was once regarded as the planet's dirtiest metropolis.

Diverse Pollution Sources

The problem in the city is attributed to a convergence of various sources including heavy vehicle emissions, airborne particles, construction activities, rubbish burning and smoke from agricultural fires in neighbouring states of Punjab and Haryana.

Within these states, farmers illegally ignite agricultural waste to clear them quickly, producing hazardous smog that then gets trapped over the capital as colder air descends.

Medical and Financial Impact

Public health and economic consequences on the nearly 33 million people calling home the Delhi area is enormous, according to various studies.

The contaminated air leads to high levels of nervous system, cardiovascular and lung diseases, and can potentially cause cancer.

The pollution is projected to be responsible for ten thousand premature deaths each year in the capital.