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As Tuesday dawned citizens of the planet's dirtiest urban center were faced with inhaling extremely polluted air that was classified as the "alarming" level.

Extremely High Pollution Readings

Various sections of the capital recorded an AQI above 500, which represents ten times the safe level set by the global health authority.

Particular areas, readings of dangerous airborne particles reached peaks of 1800, equating to 15 to 20 times higher than healthy levels.

Fireworks Restrictions and New Policy Shifts

Since 2020, the government had implemented a total prohibition on the sale and use of pyrotechnics during Diwali due to their major role to the deadly pollution that engulfs the city as colder weather sets in.

Yet recently, the recently formed local administration approached the judicial authority to propose a modification of the prohibition.

The suggestion was allowing "green crackers" – previously doubted by conservation groups as being only about 30% lower impact – as a compromise between "cultural practices and environment".

Legal Ruling and Implementation

Despite concerns of environmental and health advocates, the court agreed to the request, stipulating that eco-friendly pyrotechnics could be ignited during specific periods throughout the celebrations.

On Monday night, there was considerable violation of the regulated periods across the capital, with minimal enforcement regarding whether the fireworks being used were actually the more environmentally friendly variety.

Numerous monitoring devices throughout the capital recorded contamination reaching highest levels around midnight to extremely hazardous levels recorded during Diwali in at least recent memory.

Regional Implications

The proliferation of fireworks during the festival also triggered a controversy with neighbouring Pakistan, with authorities in Pakistan's the Punjab region partially attributing declining atmospheric conditions in Lahore on hazardous particles coming from India following the events.

Persistent Environmental Crisis

The dangerously high levels of air contamination in the capital have continued as a serious challenge for over a decade and a half, with the situation gradually deteriorating.

Around celebratory seasons, the amount of dangerous particles in the environment has been documented to shoot up to 70% higher the most severe levels ever measured in the Chinese city, which was formerly regarded as the globally most contaminated city.

Various Contamination Factors

This crisis in the city is attributed to a convergence of different contributors including transportation pollution, dust, development work, rubbish burning and haze from agricultural fires in adjacent regions of farming communities.

Throughout these areas, farmers regularly burn crop residue to expedite field preparation, generating hazardous smog that then gets trapped over the capital as cooler air arrives.

Medical and Economic Toll

The economic and health impact on the roughly thirty-three million people residing in the metropolitan zone is substantial, according to various studies.

This pollution leads to increased incidence of neurological, cardiovascular and lung disorders, and can even lead to cancer.

The pollution is calculated to be responsible for approximately 10k untimely fatalities per year in Delhi.