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As Tuesday dawned inhabitants of the planet's dirtiest urban center were faced with breathing extremely polluted air that fell into the "severe" category.

Extremely High Pollution Measurements

Various sections of the city registered an air quality index over 500, which represents ten times the safe level set by the WHO.

Certain monitoring stations, readings of dangerous airborne particles reached peaks of 1800, amounting to 15 to 20 times higher than acceptable standards.

Fireworks Prohibition and New Developments

Since 2020, the government had maintained a comprehensive restriction on the purchase and ignition of fireworks during the Festival of Lights due to their significant contribution to the dangerous haze that covers the metropolis as winter begins.

However earlier this year, the current local administration appealed to the judicial authority to request a modification of the prohibition.

Officials advocated for allowing "environmentally conscious pyrotechnics" – historically criticized by environmentalists as being only roughly 30 percent reduced emissions – as a compromise between "heritage and public health".

Court Decision and Reality

Much to the frustration of medical and ecological activists, the court complied with the request, specifying that eco-friendly pyrotechnics could be set off during limited periods throughout the festival.

On Monday night, there was widespread violation of the time restrictions across the capital, with minimal enforcement regarding whether the pyrotechnics being used were actually the eco-friendly variety.

Many recording stations throughout the city registered pollution spiking around the night hours to some of the worst levels observed during the festival in at least recent memory.

Cross-Border Effects

The widespread use of firecrackers during the festival also triggered a controversy with bordering the neighboring country, with officials in Pakistan's the Punjab region partially attributing worsening air quality in Lahore on pollutants originating in neighboring India following the celebrations.

Persistent Pollution Problem

The dangerously high levels of atmospheric toxins in Delhi have continued as a significant challenge for over a decade and a half, with the situation showing no improvement.

During Diwali, the concentration of toxic particulate matter in the atmosphere has been documented to shoot up to significantly exceeding the worst readings ever documented in the Chinese city, which was previously considered as the world's most polluted urban center.

Various Contamination Sources

The situation in the city is resulting from a convergence of various sources including automobile exhaust, airborne particles, development work, garbage fires and pollutants 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 dangerous pollution that becomes contained over the city as colder air sets in.

Health and Economic Impact

Public health and economic consequences on the roughly thirty-three million inhabitants living in the capital region is significant, according to numerous investigations.

These hazardous conditions results in high levels of nervous system, cardiovascular and respiratory disorders, and can even lead to oncological diseases.

The pollution is calculated to be responsible for ten thousand early deaths each year in Delhi.