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On Tuesday morning inhabitants of this heavily contaminated metropolis encountered exposed to severely hazardous air that was classified as the "severe" category.

Alarming Air Quality Measurements

Several parts of Delhi showed an AQI over 500, which equals ten times the recommended limit recommended by the World Health Organization.

Particular areas, readings of PM2.5 and PM10 reached peaks of 1800, equating to fifteen to twenty times exceeding acceptable levels.

Fireworks Ban and New Developments

For the past four years, the government had implemented a complete ban on the purchase and ignition of fireworks during celebrations due to their substantial impact to the hazardous haze that blankets the city as the cold season approaches.

Nevertheless recently, the current city administration appealed to the judicial authority to propose a modification of the ban.

Officials advocated for allowing "green crackers" – previously questioned by environmentalists as being only about 30% reduced emissions – as a middle ground between "tradition and public health".

Judicial Ruling and Enforcement

Much to the frustration of environmental and health activists, judicial authorities agreed to the proposal, mandating that environmentally conscious fireworks could be used during limited periods throughout the celebrations.

Throughout the festival evening, there was widespread flouting of the time restrictions across the metropolis, with insufficient monitoring regarding whether the firecrackers being used were actually the more environmentally friendly type.

Numerous recording stations throughout the capital recorded contamination peaking around midnight to some of the worst readings seen during Diwali in at least recent memory.

International Implications

The proliferation of firecrackers during the festival also triggered a controversy with bordering Pakistan, with officials in Pakistani Punjab province partially attributing worsening air quality in Lahore on contaminants traveling from across the border following the festivities.

Chronic Environmental Issue

Alarmingly severe levels of air contamination in the capital have remained as a major problem for more than 15 years, with the situation continuing to worsen.

During celebratory seasons, the levels of dangerous particles in the atmosphere has been observed to spike to seventy percent above the most severe records ever recorded in the Chinese city, which was once viewed as the globally most contaminated city.

Diverse Contamination Sources

The situation in Delhi is attributed to a combination of multiple factors including automobile exhaust, dust, building projects, rubbish burning and smoke from agricultural fires in adjacent states of farming communities.

Within these states, farmers regularly set their fields on fire to clear them quickly, producing dangerous haze that then gets trapped over the metropolitan area as cooler air arrives.

Medical and Financial Consequences

Both financial and medical impact on the roughly thirty-three million inhabitants living in the Delhi area is enormous, according to numerous investigations.

This pollution causes high levels of neurological, heart and circulatory and respiratory disorders, and can even lead to cancer.

Air quality crisis is estimated to be responsible for approximately 10k premature fatalities per year in the city.