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On Tuesday morning inhabitants of this heavily contaminated metropolis found themselves exposed to extremely polluted air that registered in the "critical" level.

Extremely High Pollution Measurements

Several parts of the capital showed an air quality index over 500, which equals 10x the recommended limit recommended by the World Health Organization.

Certain monitoring stations, readings of toxic particulate matter soared to of 1,800, representing 15-20x higher than healthy standards.

Pyrotechnics Prohibition and New Changes

For the past four years, officials had maintained a complete ban on the purchase and ignition of firecrackers during the Festival of Lights due to their major role to the dangerous smog that blankets the metropolis as colder weather sets in.

Nevertheless in recent months, the newly elected regional leadership petitioned the highest court to propose a modification of the restrictions.

Officials advocated for allowing "eco-friendly fireworks" – previously criticized by environmentalists as being only approximately one-third reduced emissions – as a middle ground between "cultural practices and environment".

Legal Ruling and Implementation

To the disappointment of medical and ecological activists, the court approved the request, specifying that environmentally conscious fireworks could be used during limited hours throughout the Diwali.

Throughout the festival evening, there was widespread flouting of the time restrictions across the city, with minimal monitoring regarding whether the pyrotechnics being used were actually the more environmentally friendly version.

Many monitoring devices throughout the city showed contamination peaking around late evening to some of the worst measurements recorded during celebrations in at least recent memory.

International Consequences

Extensive ignition of pyrotechnics during the festival also sparked a blame game with adjacent the neighboring country, with authorities in Pakistani the Punjab region partially attributing deteriorating atmospheric conditions in Lahore on hazardous particles originating in neighboring India following the festivities.

Long-Standing Pollution Crisis

Alarmingly severe readings of atmospheric toxins in Delhi have persisted as a serious issue for fifteen-plus years, with the condition gradually deteriorating.

During Diwali, the concentration of toxic airborne contaminants in the air has been observed to increase dramatically to 70% higher the peak records ever measured in the Chinese city, which was once viewed as the planet's dirtiest metropolis.

Multiple Contamination Factors

The problem in Delhi is caused by a convergence of multiple factors including transportation pollution, construction debris, development work, garbage fires and pollutants from agricultural fires in nearby regions of Punjab and Haryana.

Within these states, agricultural workers routinely ignite agricultural waste to clear them quickly, producing hazardous haze that remains stagnant over the metropolitan area as cooler air descends.

Medical and Economic Toll

The economic and health toll on the roughly thirty-three million inhabitants residing in the capital region is enormous, according to various studies.

This pollution causes high levels of nervous system, heart and circulatory and breathing disorders, and can even lead to malignancies.

The pollution is estimated to be accounting for approximately 10k early deaths annually in the capital.