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As Tuesday dawned citizens of the world's most polluted city were faced with breathing extremely polluted air that registered in the "alarming" range.

Extremely High Pollution Readings

Multiple areas of the capital showed an AQI over 500, which represents a tenfold increase over the safe limit set by the World Health Organization.

In some locations, levels of dangerous airborne particles reached peaks of 1800, representing 15-20x exceeding safe levels.

Fireworks Ban and Current Changes

Since 2020, authorities had maintained a complete ban on the distribution and bursting of pyrotechnics during celebrations due to their major role to the deadly haze that engulfs the city as colder weather sets in.

Nevertheless recently, the recently formed city government petitioned the judicial authority to seek a relaxation of the ban.

Officials advocated for allowing "environmentally conscious pyrotechnics" – which have been doubted by conservation groups as being only approximately one-third reduced emissions – as a middle ground between "tradition and ecological concerns".

Judicial Ruling and Reality

To the disappointment of public health and environmental campaigners, judges complied with the request, mandating that environmentally conscious fireworks could be ignited during designated time windows throughout the Diwali.

On Monday night, there was widespread violation of the designated hours across the city, with little regulation regarding whether the firecrackers being used were actually the eco-friendly variety.

Numerous monitoring devices throughout Delhi showed air quality peaking around midnight to extremely hazardous measurements seen during Diwali in at least recent memory.

Cross-Border Consequences

The widespread use of firecrackers during the celebrations also triggered a blame game with adjacent the neighboring country, with officials in Pakistani Punjab province pointing to worsening atmospheric conditions in Lahore on pollutants traveling from India following the festivities.

Long-Standing Pollution Problem

The dangerously high concentrations of pollution in Delhi have persisted as a major challenge for fifteen-plus years, with the situation showing no improvement.

During Diwali, the concentration of toxic particles in the air has been observed to shoot up to 70% higher the peak levels ever measured in China's capital, which was previously considered as the world's most polluted metropolis.

Diverse Contamination Factors

The problem in the capital is resulting from a mix of multiple factors including automobile exhaust, construction debris, building projects, rubbish burning and smoke from crop residue ignition in neighbouring regions of farming communities.

Within these states, farmers illegally set their fields on fire to expedite field preparation, generating dangerous haze that becomes contained over the city as winter air sets in.

Health and Economic Impact

Both financial and medical impact on the nearly 33 million people living in the Delhi area is significant, according to various research.

The contaminated air leads to increased incidence of nervous system, cardiovascular and respiratory disorders, and can potentially cause oncological diseases.

Environmental contamination is calculated to be responsible for approximately 10k untimely fatalities per year in the capital.