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On Tuesday morning residents of the planet's dirtiest urban center found themselves exposed to extremely polluted air that was classified as the "severe" range.

Extremely High Air Quality Levels

Various sections of the city showed an pollution measurement above 500, which translates to ten times the recommended limit set by the WHO.

Particular areas, readings of dangerous airborne particles reached peaks of eighteen hundred, representing 15 to 20 times higher than healthy limits.

Firecracker Ban and New Developments

Beginning in 2020, officials had implemented a comprehensive restriction on the sale and use of firecrackers during Diwali due to their major role to the hazardous haze that engulfs the capital as winter sets in.

Nevertheless in recent months, the newly elected local government approached the judicial authority to seek a modification of the prohibition.

The suggestion was allowing "eco-friendly fireworks" – previously questioned by conservation groups as being only approximately one-third less polluting – as a balance between "heritage and ecological concerns".

Court Verdict and Implementation

To the disappointment of public health and environmental campaigners, judicial authorities approved the request, mandating that environmentally conscious fireworks could be set off during designated time windows throughout the festival.

Throughout the festival evening, there was considerable flouting of the designated hours across the capital, with insufficient enforcement regarding whether the fireworks being used were actually the eco-friendly version.

Several air quality sensors throughout the capital registered pollution spiking around late evening to the most severe levels seen during the festival in at least the past three years.

Cross-Border Consequences

The widespread use of fireworks during Diwali also initiated a blame game with adjacent Pakistan, with officials in Pakistani Punjab province partly blaming declining pollution levels in their urban centers on contaminants originating in across the border following the festivities.

Long-Standing Environmental Problem

Extremely elevated concentrations of air contamination in Delhi have remained as a serious challenge for more than 15 years, with the problem continuing to worsen.

Around Diwali, the levels of hazardous particulate matter in the air has been observed to increase dramatically to significantly exceeding the most severe levels ever recorded in China's capital, which was formerly viewed as the planet's dirtiest metropolis.

Multiple Pollution Contributors

The situation in the city is resulting from a mix of multiple factors including heavy vehicle emissions, airborne particles, construction activities, garbage fires and haze from agricultural fires in adjacent regions of farming communities.

In these regions, agricultural workers routinely ignite agricultural waste to clear them quickly, producing toxic smog that then gets trapped over the city as colder air arrives.

Health and Economic Toll

Both financial and medical impact on the roughly thirty-three million people residing in the capital region is substantial, according to various investigations.

These hazardous conditions results in increased incidence of nervous system, cardiovascular and lung disorders, and can result in malignancies.

Air quality crisis is projected to be accounting for 10,000 untimely fatalities per year in Delhi.