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Tuesday brought residents of the world's most polluted city found themselves exposed to severely hazardous air that fell into the "alarming" level.

Extremely High Pollution Measurements

Various sections of the capital showed an AQI exceeding 500, which equals 10x the healthy threshold recommended by the WHO.

In some locations, readings of toxic particulate matter soared to of 1,800, representing fifteen to twenty times above healthy limits.

Fireworks Restrictions and Current Developments

Since 2020, officials had maintained a total prohibition on the sale and use of firecrackers during celebrations due to their significant contribution to the hazardous haze that engulfs the metropolis as the cold season approaches.

Nevertheless recently, the recently formed regional administration appealed to the highest court to request a easing of the prohibition.

The suggestion was allowing "eco-friendly fireworks" – historically criticized by environmental experts as being only approximately one-third lower impact – as a compromise between "heritage and environment".

Legal Verdict and Reality

Much to the frustration of environmental and health activists, judges complied with the proposal, mandating that environmentally conscious fireworks could be set off during specific time windows throughout the celebrations.

On Monday night, there was extensive disregard of the regulated periods across the capital, with little regulation regarding whether the firecrackers being used were actually the eco-friendly variety.

Numerous recording stations throughout the capital recorded pollution reaching highest levels around midnight to extremely hazardous readings observed during the festival in at least three years.

International Consequences

The proliferation of fireworks during the festival also triggered a controversy with bordering the neighboring country, with representatives in Pakistan's Punjab partly blaming worsening pollution levels in Lahore on pollutants coming from across the border following the celebrations.

Persistent Pollution Issue

Extremely elevated readings of atmospheric toxins in Delhi have persisted as a major challenge for over a decade and a half, with the problem showing no improvement.

Near the festival period, the levels of hazardous particles in the environment has been observed to increase dramatically to significantly exceeding the peak records ever measured in Beijing, which was previously viewed as the world's most polluted city.

Multiple Contamination Sources

The situation in Delhi is attributed to a convergence of different contributors including automobile exhaust, construction debris, building projects, waste incineration and smoke from agricultural fires in adjacent areas of Punjab and Haryana.

Within these states, agricultural workers illegally set their fields on fire to expedite field preparation, producing hazardous pollution that remains stagnant over the metropolitan area as cooler air descends.

Medical and Financial Impact

The economic and health toll on the nearly 33 million inhabitants residing in the capital region is substantial, according to multiple research.

This pollution leads to elevated rates of neurological, cardiovascular and breathing conditions, and can result in cancer.

Air quality crisis is estimated to be causing ten thousand premature mortalities per year in the capital.