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On Tuesday morning citizens of this heavily contaminated metropolis encountered breathing severely hazardous air that fell into the "alarming" range.

Extremely High Pollution Measurements

Several parts of the capital recorded an air quality index above 500, which equals a tenfold increase over the healthy limit established by the global health authority.

Certain monitoring stations, levels of dangerous airborne particles soared to of 1800, representing 15-20x exceeding acceptable standards.

Firecracker Prohibition and Current Developments

Beginning in 2020, the government had enforced a complete ban on the sale and use of firecrackers during the Festival of Lights due to their major role to the deadly smog that covers the metropolis as colder weather sets in.

Nevertheless in recent months, the recently formed city government petitioned the judicial authority to request a modification of the prohibition.

They proposed allowing "green crackers" – previously questioned by environmentalists as being only roughly 30 percent lower impact – as a balance between "heritage and environment".

Court Decision and Enforcement

Despite concerns of medical and ecological activists, judges agreed to the request, specifying that green firecrackers could be ignited during specific hours throughout the festival.

Throughout the festival evening, there was widespread disregard of the designated hours across the metropolis, with little regulation regarding whether the pyrotechnics being used were actually the eco-friendly type.

Numerous recording stations throughout Delhi showed air quality spiking around midnight to extremely hazardous levels observed during Diwali in at least recent memory.

Cross-Border Effects

The proliferation of fireworks during the celebrations also triggered a blame game with bordering the neighboring country, with officials in Pakistani Punjab province partly blaming declining air quality in their urban centers on hazardous particles traveling from neighboring India following the events.

Chronic Environmental Problem

The dangerously high levels of air contamination in Delhi have continued as a major challenge for fifteen-plus years, with the condition continuing to worsen.

During the festival period, the concentration of toxic particulate matter in the atmosphere has been observed to increase dramatically to 70% higher the peak readings ever recorded in the Chinese city, which was previously regarded as the globally most contaminated metropolis.

Multiple Contamination Factors

The situation in Delhi is resulting from a combination of different contributors including heavy vehicle emissions, construction debris, development work, rubbish burning and pollutants from agricultural fires in adjacent areas of neighboring agricultural zones.

Within these states, rural residents illegally set their fields on fire to expedite field preparation, creating hazardous smog that then gets trapped over the metropolitan area as colder air sets in.

Medical and Economic Impact

The economic and health impact on the approximately 33 million inhabitants calling home the Delhi area is significant, according to numerous investigations.

These hazardous conditions causes increased incidence of nervous system, heart and circulatory and respiratory disorders, and can even lead to cancer.

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