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As Tuesday dawned inhabitants of the world's most polluted city encountered breathing dangerously toxic air that fell into the "severe" category.

Alarming Pollution Measurements

Several parts of the capital registered an pollution measurement exceeding 500, which represents ten times the healthy threshold established by the World Health Organization.

In some locations, concentrations of dangerous airborne particles reached peaks of 1800, amounting to fifteen to twenty times exceeding safe standards.

Fireworks Prohibition and Recent Developments

For the past four years, the government had maintained a complete ban on the sale and use of pyrotechnics during Diwali due to their substantial impact to the deadly smog that blankets the city as the cold season begins.

Yet in recent months, the recently formed local government approached the highest court to seek a modification of the prohibition.

Officials advocated for allowing "green crackers" – historically doubted by conservation groups as being only roughly 30 percent reduced emissions – as a compromise between "tradition and ecological concerns".

Legal Decision and Implementation

Despite concerns of medical and ecological campaigners, judicial authorities agreed to the request, specifying that environmentally conscious fireworks could be set off during designated hours throughout the celebrations.

Throughout the festival evening, there was extensive violation of the time restrictions across the metropolis, with insufficient monitoring regarding whether the firecrackers being used were actually the supposedly greener version.

Several monitoring devices throughout Delhi showed pollution peaking around the night hours to some of the worst levels recorded during Diwali in at least recent memory.

International Consequences

The widespread use of firecrackers during Diwali also triggered a controversy with neighbouring Pakistan, with representatives in Pakistan's the Punjab region pointing to deteriorating pollution levels in the city of Lahore on pollutants coming from India following the celebrations.

Long-Standing Environmental Issue

Alarmingly severe readings of air contamination in the capital have continued as a major issue for fifteen-plus years, with the condition continuing to worsen.

Around celebratory seasons, the levels of dangerous airborne contaminants in the air has been documented to increase dramatically to 70% higher the peak readings ever documented in Beijing, which was once viewed as the planet's dirtiest metropolis.

Diverse Pollution Factors

The problem in the city is attributed to a mix of various sources including automobile exhaust, dust, development work, garbage fires and smoke from crop residue ignition in neighbouring regions of Punjab and Haryana.

Throughout these areas, agricultural workers routinely burn crop residue to clear them quickly, generating hazardous pollution that remains stagnant over the metropolitan area as colder air sets in.

Health and Economic Impact

The economic and health impact on the nearly 33 million residents residing in the metropolitan zone is enormous, according to various studies.

The contaminated air causes elevated rates of neurological, cardiovascular and breathing disorders, and can even lead to malignancies.

Air quality crisis is estimated to be responsible for ten thousand premature mortalities each year in the capital.