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On Tuesday morning inhabitants of the planet's dirtiest urban center encountered breathing dangerously toxic air that was classified as the "critical" level.

Alarming Pollution Readings

Various sections of the capital showed an air quality index over 500, which represents ten times the safe threshold set by the World Health Organization.

In some locations, readings of dangerous airborne particles hit highs of 1,800, equating to fifteen to twenty times above safe levels.

Pyrotechnics Prohibition and Current Developments

Since 2020, authorities had implemented a total prohibition on the distribution and bursting of pyrotechnics during Diwali due to their major role to the dangerous smog that covers the city as winter approaches.

However in recent months, the current regional administration appealed to the supreme court to request a relaxation of the prohibition.

The suggestion was allowing "eco-friendly fireworks" – which have been criticized by environmental experts as being only about 30% lower impact – as a compromise between "heritage and ecological concerns".

Court Decision and Implementation

To the disappointment of environmental and health activists, judicial authorities approved the request, stipulating that eco-friendly pyrotechnics could be used during designated periods throughout the celebrations.

During the celebrations, there was considerable violation of the regulated periods across the capital, with minimal monitoring regarding whether the pyrotechnics being used were actually the supposedly greener version.

Numerous recording stations throughout the city registered pollution spiking around midnight to some of the worst readings observed during Diwali in at least recent memory.

Regional Effects

The proliferation of fireworks during the festival also triggered a blame game with bordering Pakistan, with authorities in Pakistani Punjab partially attributing worsening atmospheric conditions in Lahore on pollutants coming from India following the events.

Persistent Pollution Crisis

Extremely elevated readings of air contamination in the city have persisted as a major problem for over a decade and a half, with the condition continuing to worsen.

Near the festival period, the concentration of hazardous particulate matter in the air has been documented to increase dramatically to significantly exceeding the peak readings ever measured in China's capital, which was once considered as the planet's dirtiest urban center.

Diverse Contamination Sources

The problem in Delhi is resulting from a mix of different contributors including heavy vehicle emissions, construction debris, building projects, waste incineration and smoke from farm burning in neighbouring regions of Punjab and Haryana.

In these regions, rural residents illegally ignite agricultural waste to prepare for next season, generating dangerous haze that becomes contained over the city as cooler air sets in.

Public Health and Economic Consequences

Both financial and medical impact on the nearly 33 million residents living in the metropolitan zone is significant, according to multiple investigations.

This pollution results in elevated rates of neurological, cardiovascular and lung conditions, and can even lead to oncological diseases.

The pollution is projected to be causing 10,000 premature fatalities annually in the capital.