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Tuesday brought inhabitants of the planet's dirtiest urban center were faced with exposed to extremely polluted air that fell into the "alarming" category.

Record-Breaking Air Quality Levels

Multiple areas of Delhi showed an AQI over 500, which equals a tenfold increase over the healthy level established by the World Health Organization.

Certain monitoring stations, concentrations of toxic particulate matter soared to of 1800, representing 15 to 20 times exceeding acceptable levels.

Firecracker Restrictions and New Changes

For the past four years, authorities had enforced a total prohibition on the distribution and bursting of pyrotechnics during celebrations due to their substantial impact to the dangerous smog that covers the capital as the cold season sets in.

Yet earlier this year, the current local administration approached the judicial authority to propose a easing of the ban.

They proposed allowing "eco-friendly fireworks" – which have been questioned by environmentalists as being only roughly 30 percent less polluting – as a compromise between "heritage and ecological concerns".

Judicial Verdict and Enforcement

To the disappointment of environmental and health campaigners, judicial authorities approved the appeal, specifying that green firecrackers could be ignited during designated time windows throughout the celebrations.

On Monday night, there was extensive flouting of the regulated periods across the city, with minimal enforcement regarding whether the fireworks being used were actually the more environmentally friendly version.

Numerous air quality sensors throughout Delhi showed air quality spiking around the night hours to some of the worst levels recorded during celebrations in at least recent memory.

Cross-Border Implications

The proliferation of pyrotechnics during the celebrations also initiated a dispute with adjacent the neighboring country, with representatives in Pakistani Punjab province pointing to worsening atmospheric conditions in Lahore on contaminants coming from neighboring India following the celebrations.

Persistent Pollution Problem

Extremely elevated levels of atmospheric toxins in the capital have continued as a major challenge for over a decade and a half, with the problem showing no improvement.

Near Diwali, the amount of toxic particles in the environment has been found to shoot up to seventy percent above the worst records ever recorded in China's capital, which was once regarded as the globally most contaminated city.

Various Pollution Contributors

This crisis in the city is caused by a combination of various sources including heavy vehicle emissions, construction debris, development work, waste incineration and pollutants from agricultural fires in neighbouring states of neighboring agricultural zones.

Throughout these areas, farmers illegally set their fields on fire to prepare for next season, generating toxic pollution that remains stagnant over the metropolitan area as winter air descends.

Health and Economic Consequences

The economic and health consequences on the approximately 33 million inhabitants residing in the Delhi area is substantial, according to multiple investigations.

The contaminated air causes elevated rates of nervous system, heart and circulatory and lung conditions, and can potentially cause oncological diseases.

Environmental contamination is calculated to be causing approximately 10k early deaths each year in the capital.