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Tuesday brought residents of the world's most polluted city were faced with breathing extremely polluted air that fell into the "critical" range.

Extremely High Pollution Measurements

Various sections of the city showed an AQI exceeding 500, which represents ten times the recommended limit set by the World Health Organization.

Certain monitoring stations, readings of dangerous airborne particles soared to of 1,800, representing fifteen to twenty times higher than healthy levels.

Fireworks Prohibition and New Policy Shifts

Since 2020, the government had maintained a comprehensive restriction on the sale and use of pyrotechnics during Diwali due to their major role to the hazardous haze that blankets the city as colder weather sets in.

However recently, the current local leadership approached the highest court to propose a easing of the restrictions.

The suggestion was allowing "environmentally conscious pyrotechnics" – which have been criticized by conservation groups as being only approximately one-third reduced emissions – as a compromise between "heritage and environment".

Court Verdict and Reality

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

On Monday night, there was widespread flouting of the regulated periods across the city, with insufficient monitoring regarding whether the fireworks being used were actually the supposedly greener variety.

Many recording stations throughout Delhi showed contamination reaching highest levels around midnight to extremely hazardous levels seen during celebrations in at least recent memory.

Cross-Border Consequences

The proliferation of fireworks during the celebrations also sparked a blame game with bordering the neighboring country, with authorities in Pakistani the Punjab region pointing to worsening atmospheric conditions in Lahore on hazardous particles coming from India following the celebrations.

Persistent Environmental Problem

Extremely elevated readings of air contamination in the capital have persisted as a major challenge for fifteen-plus years, with the condition gradually deteriorating.

During celebratory seasons, the amount of toxic airborne contaminants in the environment has been observed to shoot up to significantly exceeding the worst levels ever measured in Beijing, which was formerly viewed as the world's most polluted metropolis.

Various Pollution Sources

The problem in Delhi is caused by a combination of various sources including heavy vehicle emissions, construction debris, building projects, rubbish burning and pollutants from crop residue ignition in nearby areas of neighboring agricultural zones.

In these regions, farmers regularly burn crop residue to clear them quickly, producing toxic smog that becomes contained over the city as winter air arrives.

Medical and Financial Toll

The economic and health consequences on the approximately 33 million residents residing in the metropolitan zone is significant, according to multiple research.

This pollution results in increased incidence of nervous system, cardiovascular and respiratory disorders, and can even lead to malignancies.

Air quality crisis is estimated to be responsible for 10,000 untimely fatalities each year in the city.