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Tuesday brought inhabitants of this heavily contaminated metropolis encountered inhaling extremely polluted air that registered in the "alarming" level.

Record-Breaking Pollution Levels

Several parts of Delhi registered an air quality index exceeding 500, which equals 10x the recommended limit established by the WHO.

In some locations, levels of toxic particulate matter hit highs of 1,800, amounting to 15-20x higher than acceptable levels.

Fireworks Restrictions and New Policy Shifts

Since 2020, authorities had enforced a complete ban on the purchase and ignition of fireworks during Diwali due to their substantial impact to the dangerous smog that engulfs the metropolis as colder weather approaches.

Yet recently, the newly elected regional government petitioned the judicial authority to request a modification of the ban.

The suggestion was allowing "green crackers" – which have been criticized by environmental experts as being only approximately one-third reduced emissions – as a balance between "cultural practices and ecological concerns".

Legal Verdict and Implementation

Much to the frustration of environmental and health campaigners, judges approved the request, mandating that environmentally conscious fireworks could be ignited during designated periods throughout the celebrations.

During the celebrations, there was considerable disregard of the regulated periods across the capital, with minimal regulation regarding whether the firecrackers being used were actually the supposedly greener type.

Many monitoring devices throughout the capital recorded contamination peaking around midnight to extremely hazardous levels seen during celebrations in at least three years.

Cross-Border Consequences

The widespread use of pyrotechnics during Diwali also initiated a controversy with bordering the neighboring country, with representatives in Pakistani Punjab province partly blaming worsening pollution levels in their urban centers on pollutants originating in neighboring India following the festivities.

Chronic Pollution Issue

Extremely elevated concentrations of atmospheric toxins in the city have remained as a serious challenge for over a decade and a half, with the problem showing no improvement.

During celebratory seasons, the levels of dangerous particles in the environment has been observed to increase dramatically to 70% higher the most severe readings ever documented in China's capital, which was previously considered as the planet's dirtiest city.

Various Contamination Sources

This crisis in the capital is attributed to a combination of different contributors including transportation pollution, construction debris, building projects, waste incineration and haze from agricultural fires in neighbouring regions of neighboring agricultural zones.

Throughout these areas, rural residents illegally ignite agricultural waste to clear them quickly, generating dangerous smog that then gets trapped over the city as winter air arrives.

Public Health and Financial Consequences

The economic and health consequences on the nearly 33 million inhabitants residing in the metropolitan zone is enormous, according to multiple research.

This pollution leads to increased incidence of nervous system, heart and circulatory and respiratory disorders, and can potentially cause malignancies.

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