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On Tuesday morning citizens of the planet's dirtiest urban center found themselves inhaling severely hazardous air that was classified as the "alarming" range.

Alarming Air Quality Readings

Various sections of Delhi registered an AQI over 500, which equals ten times the recommended level recommended by the global health authority.

In some locations, levels of PM2.5 and PM10 reached peaks of 1800, amounting to 15 to 20 times above safe limits.

Pyrotechnics Restrictions and New Policy Shifts

Beginning in 2020, officials had enforced a comprehensive restriction on the distribution and bursting of firecrackers during Diwali due to their significant contribution to the deadly haze that blankets the capital as winter sets in.

However earlier this year, the recently formed local administration appealed to the judicial authority to request a modification of the prohibition.

The suggestion was allowing "green crackers" – which have been questioned by conservation groups as being only about 30% lower impact – as a compromise between "tradition and public health".

Legal Ruling and Enforcement

Despite concerns of medical and ecological advocates, judicial authorities agreed to the appeal, mandating that green firecrackers could be used during designated time windows throughout the celebrations.

During the celebrations, there was considerable disregard of the regulated periods across the city, with insufficient regulation regarding whether the firecrackers being used were actually the more environmentally friendly variety.

Numerous recording stations throughout the capital registered air quality peaking around the night hours to the most severe readings recorded during celebrations in at least recent memory.

Regional Effects

Extensive ignition of firecrackers during the festival also triggered a controversy with neighbouring the neighboring country, with representatives in Pakistani Punjab province partially attributing worsening pollution levels in their urban centers on pollutants originating in across the border following the celebrations.

Persistent Environmental Problem

Alarmingly severe concentrations of air contamination in the capital have continued as a significant issue for over a decade and a half, with the condition continuing to worsen.

Around Diwali, the amount of toxic airborne contaminants in the atmosphere has been found to shoot up to seventy percent above the most severe records ever recorded in the Chinese city, which was previously regarded as the planet's dirtiest urban center.

Various Contamination Contributors

This crisis in the city is attributed to a combination of different contributors including heavy vehicle emissions, airborne particles, building projects, rubbish burning and pollutants from farm burning in adjacent regions of Punjab and Haryana.

In these regions, farmers regularly set their fields on fire to clear them quickly, generating toxic smog that remains stagnant over the metropolitan area as colder air arrives.

Medical and Economic Consequences

Public health and economic toll on the approximately 33 million residents calling home the Delhi area is significant, according to various investigations.

These hazardous conditions leads to high levels of nervous system, heart and circulatory and breathing conditions, and can potentially cause malignancies.

Air quality crisis is calculated to be accounting for ten thousand untimely deaths each year in the city.