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On Tuesday morning inhabitants of this heavily contaminated metropolis found themselves exposed to dangerously toxic air that fell into the "critical" category.

Record-Breaking Air Quality Levels

Several parts of Delhi showed an pollution measurement above 500, which equals 10x the recommended limit set by the global health authority.

Certain monitoring stations, levels of dangerous airborne particles reached peaks of 1800, amounting to 15 to 20 times exceeding acceptable levels.

Fireworks Restrictions and Recent Changes

Since 2020, officials had enforced a complete ban on the sale and use of pyrotechnics during Diwali due to their major role to the deadly smog that blankets the city as winter approaches.

Nevertheless earlier this year, the recently formed regional leadership petitioned the supreme court to propose a modification of the ban.

Officials advocated for allowing "environmentally conscious pyrotechnics" – previously criticized by environmental experts as being only about 30% lower impact – as a middle ground between "cultural practices and ecological concerns".

Judicial Verdict and Enforcement

Despite concerns of public health and environmental advocates, the court agreed to the appeal, mandating that eco-friendly pyrotechnics could be ignited during specific periods throughout the Diwali.

During the celebrations, there was widespread disregard of the time restrictions across the capital, with insufficient regulation regarding whether the firecrackers being used were actually the eco-friendly variety.

Several monitoring devices throughout the capital registered pollution spiking around midnight to some of the worst readings recorded during the festival in at least recent memory.

Regional Effects

Extensive ignition of firecrackers during the festival also initiated a dispute with adjacent Pakistan, with representatives in Pakistani Punjab partly blaming deteriorating pollution levels in the city of Lahore on contaminants coming from India following the festivities.

Long-Standing Environmental Issue

Alarmingly severe levels of atmospheric toxins in the capital have continued as a major problem for over a decade and a half, with the condition continuing to worsen.

During Diwali, the amount of dangerous particulate matter in the air has been documented to spike to seventy percent above the worst records ever measured in China's capital, which was previously regarded as the planet's dirtiest metropolis.

Various Contamination Sources

The situation in the capital is resulting from a convergence of multiple factors including heavy vehicle emissions, dust, building projects, garbage fires and pollutants from farm burning in neighbouring areas of neighboring agricultural zones.

In these regions, farmers regularly set their fields on fire to clear them quickly, generating hazardous smog that remains stagnant over the capital as cooler air sets in.

Health and Economic Consequences

Both financial and medical impact on the roughly thirty-three million inhabitants living in the Delhi area is significant, according to multiple studies.

This pollution leads to high levels of nervous system, heart and circulatory and respiratory disorders, and can even lead to cancer.

Air quality crisis is calculated to be responsible for approximately 10k premature deaths annually in the capital.