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As Tuesday dawned citizens of the planet's dirtiest urban center found themselves inhaling dangerously toxic air that was classified as the "critical" range.

Extremely High Air Quality Measurements

Several parts of the capital showed an air quality index above 500, which translates to ten times the safe limit set by the global health authority.

In some locations, concentrations of PM2.5 and PM10 soared to of 1,800, equating to 15 to 20 times higher than healthy limits.

Firecracker Ban and New Developments

Beginning in 2020, authorities had enforced a complete ban on the sale and use of fireworks during Diwali due to their substantial impact to the hazardous smog that engulfs the capital as the cold season approaches.

Yet recently, the recently formed city leadership petitioned the supreme court to seek a easing of the ban.

The suggestion was allowing "green crackers" – which have been criticized by conservation groups as being only approximately one-third less polluting – as a compromise between "tradition and ecological concerns".

Judicial Verdict and Implementation

Much to the frustration of public health and environmental advocates, judges agreed to the proposal, stipulating that eco-friendly pyrotechnics could be ignited during designated time windows throughout the Diwali.

During the celebrations, there was extensive violation of the regulated periods across the capital, with insufficient enforcement regarding whether the firecrackers being used were actually the eco-friendly type.

Numerous air quality sensors throughout Delhi recorded contamination peaking around the night hours to extremely hazardous levels recorded during the festival in at least the past three years.

Regional Consequences

Extensive ignition of fireworks during Diwali also sparked a dispute with bordering Pakistan, with officials in Pakistan's Punjab partially attributing worsening pollution levels in their urban centers on contaminants traveling from neighboring India following the festivities.

Chronic Pollution Issue

Alarmingly severe levels of air contamination in Delhi have remained as a major challenge for over a decade and a half, with the problem showing no improvement.

Near celebratory seasons, the levels of hazardous particles in the atmosphere has been observed to spike to 70% higher the worst records ever recorded in China's capital, which was once viewed as the world's most polluted city.

Multiple Contamination Contributors

The situation in the capital is caused by a convergence of multiple factors including transportation pollution, dust, building projects, garbage fires and smoke from crop residue ignition in neighbouring states of Punjab and Haryana.

Throughout these areas, farmers regularly set their fields on fire to clear them quickly, producing dangerous haze that becomes contained over the capital as colder air arrives.

Medical and Financial Consequences

The economic and health consequences on the nearly 33 million inhabitants living in the capital region is substantial, according to numerous studies.

These hazardous conditions causes elevated rates of neurological, heart and circulatory and respiratory diseases, and can even lead to malignancies.

Air quality crisis is calculated to be causing 10,000 untimely mortalities each year in the city.