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On Tuesday morning residents of the planet's dirtiest urban center were faced with exposed to extremely polluted air that registered in the "severe" level.

Alarming Pollution Measurements

Several parts of Delhi showed an pollution measurement over 500, which equals 10x the recommended threshold established by the World Health Organization.

Particular areas, levels of toxic particulate matter reached peaks of 1800, amounting to fifteen to twenty times above safe levels.

Firecracker Prohibition and Recent Policy Shifts

For the past four years, the government had implemented a comprehensive restriction on the sale and use of fireworks during celebrations due to their significant contribution to the deadly haze that covers the capital as winter sets in.

Nevertheless recently, the current city administration petitioned the highest court to propose a modification of the ban.

Officials advocated for allowing "green crackers" – historically doubted by conservation groups as being only roughly 30 percent less polluting – as a balance between "heritage and ecological concerns".

Court Verdict and Enforcement

To the disappointment of public health and environmental advocates, judges complied with the request, mandating that green firecrackers could be used during limited time windows throughout the celebrations.

Throughout the festival evening, there was considerable flouting of the regulated periods across the city, with minimal monitoring regarding whether the firecrackers being used were actually the supposedly greener variety.

Numerous air quality sensors throughout the capital recorded contamination reaching highest levels around midnight to extremely hazardous levels recorded during celebrations in at least recent memory.

Regional Effects

The proliferation of fireworks during the festival also triggered a controversy with bordering the neighboring country, with authorities in Pakistan's Punjab province partly blaming deteriorating air quality in Lahore on pollutants coming from across the border following the festivities.

Long-Standing Pollution Problem

The dangerously high levels of pollution in the capital have persisted as a significant challenge for fifteen-plus years, with the problem continuing to worsen.

During the festival period, the amount of hazardous particulate matter in the atmosphere has been documented to spike to significantly exceeding the most severe readings ever measured in the Chinese city, which was formerly considered as the planet's dirtiest metropolis.

Various Contamination Contributors

The situation in Delhi is caused by a combination of different contributors including automobile exhaust, dust, construction activities, garbage fires and smoke from crop residue ignition in adjacent states of farming communities.

In these regions, agricultural workers illegally set their fields on fire to expedite field preparation, generating toxic haze that becomes contained over the metropolitan area as colder air sets in.

Health and Financial Impact

The economic and health consequences on the approximately 33 million residents living in the Delhi area is substantial, according to numerous research.

These hazardous conditions leads to elevated rates of nervous system, cardiovascular and respiratory conditions, and can potentially cause malignancies.

Environmental contamination is projected to be accounting for 10,000 untimely fatalities each year in Delhi.