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Tuesday brought inhabitants of the world's most polluted city found themselves breathing severely hazardous air that was classified as the "alarming" level.

Record-Breaking Pollution Measurements

Several parts of the city recorded an AQI above 500, which translates to ten times the recommended level recommended by the WHO.

In some locations, concentrations of toxic particulate matter hit highs of 1800, representing fifteen to twenty times exceeding healthy limits.

Fireworks Prohibition and Current Policy Shifts

Beginning in 2020, officials had maintained a complete ban on the purchase and ignition of fireworks during celebrations due to their major role to the dangerous smog that engulfs the metropolis as the cold season begins.

Yet recently, the newly elected regional leadership petitioned the supreme court to request a modification of the ban.

The suggestion was allowing "green crackers" – which have been criticized by environmental experts as being only roughly 30 percent less polluting – as a middle ground between "heritage and environment".

Court Ruling and Reality

To the disappointment of medical and ecological advocates, judicial authorities approved the appeal, mandating that environmentally conscious fireworks could be used during specific periods throughout the celebrations.

During the celebrations, there was widespread flouting of the designated hours across the city, with little enforcement regarding whether the fireworks being used were actually the supposedly greener version.

Several air quality sensors throughout Delhi recorded contamination reaching highest levels around the night hours to some of the worst readings observed during Diwali in at least recent memory.

Cross-Border Effects

The widespread use of firecrackers during the festival also sparked a dispute with neighbouring Pakistan, with officials in Pakistan's Punjab pointing to worsening pollution levels in their urban centers on pollutants coming from India following the celebrations.

Chronic Pollution Problem

Extremely elevated levels of pollution in the capital have continued as a significant problem for over a decade and a half, with the problem gradually deteriorating.

During celebratory seasons, the amount of hazardous particles in the air has been documented to spike to 70% higher the peak records ever recorded in the Chinese city, which was formerly regarded as the planet's dirtiest city.

Multiple Contamination Sources

The situation in Delhi is caused by a mix of various sources including heavy vehicle emissions, construction debris, building projects, waste incineration and pollutants from crop residue ignition in adjacent areas of neighboring agricultural zones.

Throughout these areas, rural residents routinely burn crop residue to expedite field preparation, producing dangerous pollution that remains stagnant over the metropolitan area as winter air sets in.

Public Health and Financial Consequences

Both financial and medical impact on the roughly thirty-three million inhabitants calling home the metropolitan zone is significant, according to numerous research.

This pollution causes increased incidence of nervous system, cardiovascular and lung conditions, and can even lead to cancer.

The pollution is projected to be causing approximately 10k premature mortalities annually in the capital.