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Tuesday brought citizens of the world's most polluted city encountered inhaling severely hazardous air that registered in the "severe" range.

Record-Breaking Air Quality Measurements

Multiple areas of the capital showed an air quality index above 500, which translates to 10x the recommended level set by the global health authority.

Particular areas, concentrations of toxic particulate matter reached peaks of 1,800, representing 15-20x higher than healthy standards.

Firecracker Restrictions and New Policy Shifts

Since 2020, officials had implemented a complete ban on the sale and use of fireworks during Diwali due to their substantial impact to the deadly pollution that covers the capital as the cold season begins.

Nevertheless in recent months, the recently formed local administration petitioned the judicial authority to propose a easing of the restrictions.

They proposed allowing "eco-friendly fireworks" – which have been criticized by environmentalists as being only about 30% reduced emissions – as a middle ground between "tradition and ecological concerns".

Judicial Decision and Reality

To the disappointment of environmental and health activists, the court agreed to the appeal, mandating that environmentally conscious fireworks could be set off during designated time windows throughout the festival.

During the celebrations, there was widespread flouting of the regulated periods across the capital, with minimal regulation regarding whether the firecrackers being used were actually the more environmentally friendly version.

Numerous monitoring devices throughout Delhi showed air quality reaching highest levels around late evening to the most severe readings seen during celebrations in at least the past three years.

International Consequences

Extensive ignition of firecrackers during Diwali also sparked a controversy with neighbouring Pakistan, with representatives in Pakistan's Punjab partially attributing declining air quality in the city of Lahore on contaminants originating in across the border following the festivities.

Long-Standing Pollution Problem

Extremely elevated levels of air contamination in Delhi have continued as a major issue for more than 15 years, with the problem gradually deteriorating.

During the festival period, the levels of hazardous particles in the environment has been observed to spike to seventy percent above the peak levels ever recorded in Beijing, which was once considered as the world's most polluted metropolis.

Various Pollution Sources

The situation in Delhi is caused by a combination of various sources including transportation pollution, construction debris, construction activities, garbage fires and pollutants from agricultural fires in adjacent states of neighboring agricultural zones.

Throughout these areas, farmers illegally set their fields on fire to expedite field preparation, creating dangerous pollution that remains stagnant over the city as colder air sets in.

Public Health and Financial Impact

The economic and health toll on the nearly 33 million inhabitants calling home the Delhi area is substantial, according to multiple research.

This pollution causes increased incidence of nervous system, heart and circulatory and breathing diseases, and can potentially cause oncological diseases.

Environmental contamination is projected to be causing 10,000 early fatalities each year in the city.