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As Tuesday dawned citizens of this heavily contaminated metropolis were faced with breathing extremely polluted air that registered in the "alarming" level.

Alarming Pollution Measurements

Multiple areas of the city registered an pollution measurement exceeding 500, which represents a tenfold increase over the safe limit established by the WHO.

Certain monitoring stations, readings of toxic particulate matter hit highs of eighteen hundred, equating to 15 to 20 times higher than healthy levels.

Firecracker Restrictions and Current Changes

For the past four years, the government had maintained a total prohibition on the distribution and bursting of fireworks during Diwali due to their significant contribution to the deadly pollution that covers the metropolis as colder weather begins.

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

The suggestion was allowing "green crackers" – previously doubted by environmental experts as being only about 30% less polluting – as a balance between "cultural practices and ecological concerns".

Court Verdict and Reality

Much to the frustration of medical and ecological campaigners, judicial authorities complied with the request, specifying that green firecrackers could be set off during limited periods throughout the festival.

Throughout the festival evening, there was extensive violation of the designated hours across the metropolis, with little monitoring regarding whether the firecrackers being used were actually the eco-friendly variety.

Several recording stations throughout Delhi showed air quality reaching highest levels around midnight to extremely hazardous measurements observed during Diwali in at least the past three years.

Regional Consequences

The widespread use of fireworks during the celebrations also triggered a dispute with bordering the neighboring country, with authorities in Pakistan's the Punjab region pointing to declining air quality in their urban centers on contaminants coming from neighboring India following the events.

Persistent Environmental Crisis

Alarmingly severe readings of pollution in the capital have continued as a major challenge for fifteen-plus years, with the situation gradually deteriorating.

Near the festival period, the amount of dangerous airborne contaminants in the environment has been observed to shoot up to significantly exceeding the worst readings ever documented in Beijing, which was once regarded as the world's most polluted urban center.

Diverse Contamination Factors

The situation in Delhi is resulting from a combination of various sources including automobile exhaust, airborne particles, building projects, rubbish burning and pollutants from farm burning in neighbouring regions of neighboring agricultural zones.

Within these states, rural residents illegally set their fields on fire to expedite field preparation, creating toxic pollution that then gets trapped over the city as cooler air sets in.

Public Health and Financial Consequences

The economic and health toll on the nearly 33 million people calling home the capital region is enormous, according to numerous investigations.

These hazardous conditions results in high levels of neurological, heart and circulatory and respiratory conditions, and can potentially cause cancer.

Air quality crisis is projected to be causing 10,000 premature fatalities annually in Delhi.