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On Tuesday morning inhabitants of the planet's dirtiest urban center found themselves breathing severely hazardous air that was classified as the "alarming" level.

Extremely High Pollution Readings

Various sections of the capital registered an AQI exceeding 500, which represents ten times the recommended limit established by the global health authority.

In some locations, concentrations of toxic particulate matter soared to of 1800, equating to fifteen to twenty times higher than acceptable levels.

Pyrotechnics Restrictions and Recent Changes

Since 2020, the government had implemented a comprehensive restriction on the sale and use of pyrotechnics during the Festival of Lights due to their significant contribution to the hazardous smog that covers the capital as winter approaches.

Yet earlier this year, the newly elected local administration petitioned the supreme court to propose a easing of the ban.

Officials advocated for allowing "environmentally conscious pyrotechnics" – historically doubted by environmentalists as being only roughly 30 percent reduced emissions – as a balance between "tradition and environment".

Legal Verdict and Reality

Much to the frustration of medical and ecological activists, judicial authorities approved the request, mandating that environmentally conscious fireworks could be used during specific hours throughout the Diwali.

Throughout the festival evening, there was considerable flouting of the regulated periods across the metropolis, with insufficient regulation regarding whether the pyrotechnics being used were actually the eco-friendly version.

Several recording stations throughout the capital recorded contamination reaching highest levels around late evening to some of the worst readings recorded during celebrations in at least recent memory.

Cross-Border Consequences

The proliferation of firecrackers during the celebrations also triggered a dispute with adjacent Pakistan, with representatives in Pakistani Punjab partially attributing deteriorating air quality in their urban centers on contaminants traveling from India following the festivities.

Long-Standing Environmental Issue

Alarmingly severe concentrations of air contamination in the capital have persisted as a serious challenge for over a decade and a half, with the situation showing no improvement.

Around the festival period, the amount of toxic particles in the air has been observed to increase dramatically to significantly exceeding the most severe levels ever documented in China's capital, which was once regarded as the world's most polluted city.

Multiple Contamination Sources

The situation in Delhi is resulting from a mix of various sources including heavy vehicle emissions, airborne particles, building projects, garbage fires and haze from crop residue ignition in adjacent states of neighboring agricultural zones.

Within these states, farmers routinely ignite agricultural waste to expedite field preparation, creating dangerous haze that remains stagnant over the capital as colder air arrives.

Public Health and Economic Impact

Public health and economic impact on the nearly 33 million residents living in the Delhi area is substantial, according to multiple research.

These hazardous conditions results in increased incidence of nervous system, heart and circulatory and breathing diseases, and can potentially cause oncological diseases.

Environmental contamination is calculated to be responsible for approximately 10k untimely mortalities each year in Delhi.