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On Tuesday morning citizens of this heavily contaminated metropolis found themselves breathing extremely polluted air that fell into the "critical" level.

Alarming Air Quality Measurements

Several parts of Delhi recorded an pollution measurement above 500, which equals ten times the recommended limit established by the global health authority.

In some locations, levels of PM2.5 and PM10 reached peaks of 1800, amounting to 15-20x exceeding safe standards.

Fireworks Ban and Current Policy Shifts

Since 2020, the government had implemented a total prohibition on the purchase and ignition of fireworks during the Festival of Lights due to their substantial impact to the hazardous smog that covers the metropolis as winter approaches.

Nevertheless recently, the newly elected local government approached the judicial authority to request a relaxation of the restrictions.

Officials advocated for allowing "eco-friendly fireworks" – previously doubted by conservation groups as being only roughly 30 percent reduced emissions – as a middle ground between "cultural practices and public health".

Judicial Ruling and Implementation

To the disappointment of medical and ecological activists, judicial authorities complied with the appeal, mandating that green firecrackers could be set off during designated periods throughout the festival.

Throughout the festival evening, there was extensive disregard of the designated hours across the metropolis, with little enforcement regarding whether the firecrackers being used were actually the supposedly greener version.

Numerous air quality sensors throughout Delhi recorded air quality peaking around the night hours to some of the worst readings recorded during Diwali in at least the past three years.

International Effects

Extensive ignition of firecrackers during Diwali also sparked a blame game with adjacent the neighboring country, with representatives in Pakistan's Punjab partly blaming worsening air quality in their urban centers on pollutants originating in India following the events.

Long-Standing Pollution Problem

The dangerously high concentrations of atmospheric toxins in the capital have remained as a major challenge for more than 15 years, with the situation gradually deteriorating.

During Diwali, the amount of dangerous particulate matter in the air has been found to shoot up to seventy percent above the most severe records ever measured in Beijing, which was once regarded as the planet's dirtiest urban center.

Multiple Contamination Contributors

The situation in the city is resulting from a combination of different contributors including transportation pollution, airborne particles, development work, waste incineration and pollutants from farm burning in adjacent areas of Punjab and Haryana.

Within these states, rural residents routinely ignite agricultural waste to expedite field preparation, creating dangerous haze that then gets trapped over the city as colder air arrives.

Public Health and Economic Toll

Public health and economic toll on the approximately 33 million people residing in the Delhi area is enormous, according to various research.

These hazardous conditions leads to elevated rates of nervous system, cardiovascular and lung conditions, and can potentially cause oncological diseases.

Environmental contamination is estimated to be responsible for 10,000 premature fatalities per year in Delhi.