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As Tuesday dawned citizens of the planet's dirtiest urban center were faced with breathing severely hazardous air that registered in the "critical" category.

Record-Breaking Air Quality Readings

Several parts of the city showed an air quality index exceeding 500, which translates to a tenfold increase over the safe limit established by the global health authority.

Particular areas, concentrations of dangerous airborne particles soared to of 1800, representing 15 to 20 times above acceptable limits.

Fireworks Prohibition and New Changes

Since 2020, officials had implemented a comprehensive restriction on the purchase and ignition of firecrackers during celebrations due to their major role to the hazardous pollution that engulfs the city as the cold season approaches.

However earlier this year, the recently formed city leadership appealed to the judicial authority to request a relaxation of the ban.

They proposed allowing "eco-friendly fireworks" – historically questioned by environmental experts as being only approximately one-third reduced emissions – as a compromise between "cultural practices and ecological concerns".

Judicial Ruling and Enforcement

Despite concerns of public health and environmental activists, judicial authorities complied with the appeal, mandating that environmentally conscious fireworks could be set off during limited hours throughout the celebrations.

During the celebrations, there was extensive flouting of the time restrictions across the capital, with minimal regulation regarding whether the firecrackers being used were actually the eco-friendly version.

Numerous monitoring devices throughout the city showed pollution reaching highest levels around late evening to the most severe levels seen during the festival in at least recent memory.

International Implications

The widespread use of firecrackers during Diwali also initiated a controversy with adjacent Pakistan, with officials in Pakistani Punjab province partly blaming deteriorating atmospheric conditions in their urban centers on hazardous particles coming from neighboring India following the celebrations.

Long-Standing Pollution Issue

Alarmingly severe levels of air contamination in Delhi have remained as a major problem for over a decade and a half, with the situation showing no improvement.

Near celebratory seasons, the amount of dangerous airborne contaminants in the environment has been found to increase dramatically to 70% higher the peak levels ever documented in China's capital, which was formerly regarded as the globally most contaminated city.

Various Pollution Factors

The situation in the city is attributed to a convergence of various sources including automobile exhaust, dust, construction activities, waste incineration and pollutants from agricultural fires in adjacent regions of farming communities.

Throughout these areas, rural residents illegally burn crop residue to prepare for next season, producing toxic pollution that then gets trapped over the city as cooler air arrives.

Medical and Financial Impact

The economic and health consequences on the approximately 33 million inhabitants residing in the metropolitan zone is enormous, according to numerous investigations.

These hazardous conditions leads to high levels of neurological, heart and circulatory and lung diseases, and can result in malignancies.

The pollution is calculated to be accounting for 10,000 early fatalities annually in Delhi.