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Tuesday brought inhabitants of the planet's dirtiest urban center found themselves inhaling extremely polluted air that was classified as the "alarming" range.

Extremely High Pollution Measurements

Several parts of the city recorded an pollution measurement exceeding 500, which represents 10x the safe level set by the World Health Organization.

Particular areas, levels of toxic particulate matter hit highs of 1,800, equating to 15 to 20 times above healthy limits.

Pyrotechnics Ban and Recent Policy Shifts

Beginning in 2020, officials had implemented a complete ban on the sale and use of pyrotechnics during celebrations due to their major role to the deadly pollution that blankets the capital as winter sets in.

Nevertheless in recent months, the newly elected local administration approached the supreme court to seek a modification of the prohibition.

Officials advocated for allowing "eco-friendly fireworks" – historically doubted by environmental experts as being only roughly 30 percent less polluting – as a middle ground between "cultural practices and environment".

Legal Verdict and Implementation

Despite concerns of environmental and health advocates, judicial authorities approved the proposal, specifying that green firecrackers could be used during specific periods throughout the celebrations.

Throughout the festival evening, there was considerable violation of the designated hours across the metropolis, with little monitoring regarding whether the firecrackers being used were actually the supposedly greener variety.

Many air quality sensors throughout the city registered air quality spiking around midnight to the most severe readings seen during Diwali in at least recent memory.

International Effects

Extensive ignition of firecrackers during the festival also triggered a blame game with bordering the neighboring country, with officials in Pakistan's Punjab pointing to deteriorating pollution levels in Lahore on contaminants coming from India following the festivities.

Long-Standing Pollution Problem

Alarmingly severe levels of pollution in Delhi have persisted as a major issue for fifteen-plus years, with the problem showing no improvement.

During Diwali, the levels of dangerous particulate matter in the air has been observed to increase dramatically to 70% higher the worst readings ever measured in Beijing, which was previously viewed as the planet's dirtiest metropolis.

Diverse Contamination Contributors

The problem in Delhi is attributed to a combination of different contributors including heavy vehicle emissions, dust, development work, rubbish burning and smoke from crop residue ignition in neighbouring regions of farming communities.

In these regions, farmers regularly ignite agricultural waste to expedite field preparation, producing dangerous haze that becomes contained over the metropolitan area as colder air descends.

Public Health and Financial Impact

Both financial and medical consequences on the nearly 33 million residents residing in the metropolitan zone is substantial, according to multiple studies.

This pollution causes elevated rates of nervous system, cardiovascular and respiratory conditions, and can result in cancer.

Air quality crisis is calculated to be causing ten thousand premature mortalities each year in the city.