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On Tuesday morning citizens of the planet's dirtiest urban center were faced with inhaling severely hazardous air that was classified as the "critical" category.

Alarming Air Quality Levels

Various sections of the city registered an pollution measurement exceeding 500, which equals 10x the healthy level set by the global health authority.

Certain monitoring stations, concentrations of PM2.5 and PM10 soared to of eighteen hundred, amounting to 15 to 20 times above acceptable levels.

Pyrotechnics Ban and Current Developments

Since 2020, the government had implemented a complete ban on the sale and use of pyrotechnics during the Festival of Lights due to their substantial impact to the hazardous smog that blankets the capital as colder weather sets in.

Yet earlier this year, the recently formed city administration approached the highest court to seek a relaxation of the prohibition.

The suggestion was allowing "green crackers" – historically criticized by environmental experts as being only approximately one-third reduced emissions – as a balance between "heritage and environment".

Legal Verdict and Implementation

Despite concerns of environmental and health activists, the court approved the appeal, mandating that eco-friendly pyrotechnics could be used during limited hours throughout the festival.

Throughout the festival evening, there was considerable disregard of the designated hours across the metropolis, with minimal regulation regarding whether the fireworks being used were actually the more environmentally friendly version.

Numerous air quality sensors throughout Delhi registered contamination spiking around late evening to extremely hazardous measurements seen during the festival in at least three years.

International Implications

Extensive ignition of firecrackers during Diwali also triggered a blame game with bordering Pakistan, with officials in Pakistani the Punjab region partially attributing worsening air quality in the city of Lahore on pollutants coming from neighboring India following the events.

Chronic Pollution Crisis

Alarmingly severe readings of pollution in the capital have continued as a serious problem for fifteen-plus years, with the condition showing no improvement.

Near the festival period, the concentration of dangerous particles in the air has been documented to spike to seventy percent above the worst readings ever measured in China's capital, which was formerly regarded as the world's most polluted metropolis.

Multiple Contamination Contributors

The situation in the city is resulting from a mix of multiple factors including heavy vehicle emissions, construction debris, construction activities, rubbish burning and smoke from agricultural fires in neighbouring states of neighboring agricultural zones.

In these regions, farmers illegally set their fields on fire to clear them quickly, producing hazardous pollution that remains stagnant over the city as winter air descends.

Medical and Financial Toll

Both financial and medical toll on the approximately 33 million people living in the metropolitan zone is significant, according to numerous investigations.

These hazardous conditions leads to elevated rates of neurological, cardiovascular and respiratory disorders, and can even lead to oncological diseases.

Environmental contamination is calculated to be accounting for approximately 10k premature deaths annually in the capital.