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As Tuesday dawned residents of the planet's dirtiest urban center found themselves breathing extremely polluted air that was classified as the "critical" range.

Record-Breaking Air Quality Levels

Several parts of the capital showed an air quality index above 500, which equals 10x the recommended threshold established by the global health authority.

Certain monitoring stations, readings of PM2.5 and PM10 soared to of 1,800, amounting to 15 to 20 times above healthy standards.

Firecracker Prohibition and New Developments

Since 2020, officials had implemented a total prohibition on the purchase and ignition of pyrotechnics during Diwali due to their significant contribution to the hazardous haze that blankets the metropolis as colder weather begins.

Yet in recent months, the current city administration approached the judicial authority to propose a modification of the prohibition.

Officials advocated for allowing "eco-friendly fireworks" – which have been questioned by environmental experts as being only roughly 30 percent lower impact – as a balance between "cultural practices and public health".

Judicial Ruling and Reality

Much to the frustration of environmental and health campaigners, judicial authorities complied with the appeal, mandating that green firecrackers could be set off during limited periods throughout the Diwali.

Throughout the festival evening, there was widespread violation of the time restrictions across the capital, with little regulation regarding whether the fireworks being used were actually the supposedly greener variety.

Several monitoring devices throughout Delhi recorded pollution peaking around late evening to extremely hazardous measurements seen during the festival in at least three years.

International Consequences

The widespread use of firecrackers during the celebrations also triggered a dispute with adjacent the neighboring country, with authorities in Pakistan's Punjab province pointing to declining pollution levels in the city of Lahore on contaminants coming from India following the festivities.

Long-Standing Pollution Problem

The dangerously high levels of pollution in the capital have persisted as a serious issue for over a decade and a half, with the problem gradually deteriorating.

Around the festival period, the levels of toxic particles in the environment has been found to increase dramatically to significantly exceeding the peak records ever measured in Beijing, which was formerly viewed as the planet's dirtiest urban center.

Multiple Contamination Sources

The problem in Delhi is caused by a mix of different contributors including heavy vehicle emissions, construction debris, building projects, waste incineration and smoke from farm burning in adjacent areas of farming communities.

Within these states, farmers regularly ignite agricultural waste to clear them quickly, producing toxic haze that becomes contained over the city as colder air arrives.

Medical and Economic Toll

The economic and health consequences on the nearly 33 million people calling home the metropolitan zone is substantial, according to multiple studies.

The contaminated air causes elevated rates of nervous system, cardiovascular and respiratory diseases, and can even lead to malignancies.

Air quality crisis is estimated to be accounting for ten thousand early deaths each year in the city.