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Tuesday brought residents of the planet's dirtiest urban center found themselves exposed to extremely polluted air that fell into the "critical" level.

Record-Breaking Pollution Readings

Several parts of the capital registered an pollution measurement above 500, which represents a tenfold increase over the recommended level recommended by the WHO.

Particular areas, readings of PM2.5 and PM10 hit highs of 1,800, amounting to 15 to 20 times exceeding healthy standards.

Fireworks Ban and Recent Policy Shifts

Since 2020, officials had maintained a complete ban on the sale and use of firecrackers during celebrations due to their substantial impact to the hazardous pollution that engulfs the metropolis as the cold season begins.

Yet recently, the recently formed regional leadership petitioned the highest court to request a modification of the prohibition.

They proposed allowing "green crackers" – historically doubted by environmentalists as being only about 30% lower impact – as a balance between "cultural practices and environment".

Judicial Decision and Implementation

To the disappointment of environmental and health activists, the court agreed to the request, specifying that green firecrackers could be ignited during designated hours throughout the Diwali.

During the celebrations, there was considerable flouting of the designated hours across the city, with minimal enforcement regarding whether the firecrackers being used were actually the supposedly greener variety.

Numerous recording stations throughout Delhi showed contamination spiking around midnight to the most severe readings recorded during the festival in at least the past three years.

Cross-Border Effects

The widespread use of firecrackers during the festival also sparked a blame game with bordering the neighboring country, with officials in Pakistan's the Punjab region partly blaming deteriorating air quality in their urban centers on contaminants traveling from neighboring India following the events.

Long-Standing Pollution Crisis

Alarmingly severe levels of air contamination in Delhi have continued as a serious challenge for more than 15 years, with the problem showing no improvement.

During Diwali, the amount of dangerous airborne contaminants in the atmosphere has been found to shoot up to significantly exceeding the worst levels ever documented in the Chinese city, which was previously considered as the planet's dirtiest city.

Multiple Contamination Contributors

This crisis in the city is resulting from a convergence of different contributors including transportation pollution, dust, building projects, garbage fires and haze from crop residue ignition in neighbouring states of Punjab and Haryana.

In these regions, agricultural workers regularly burn crop residue to prepare for next season, creating dangerous smog that remains stagnant over the city as winter air descends.

Medical and Financial Consequences

The economic and health consequences on the nearly 33 million residents residing in the capital region is significant, according to numerous investigations.

The contaminated air leads to increased incidence of nervous system, cardiovascular and breathing disorders, and can result in oncological diseases.

Environmental contamination is estimated to be causing ten thousand premature deaths per year in the city.