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On Tuesday morning inhabitants of the planet's dirtiest urban center were faced with exposed to dangerously toxic air that registered in the "severe" range.

Extremely High Air Quality Levels

Multiple areas of Delhi recorded an AQI exceeding 500, which translates to ten times the safe limit recommended by the WHO.

Particular areas, concentrations of dangerous airborne particles hit highs of 1,800, equating to 15 to 20 times higher than acceptable limits.

Fireworks Prohibition and Current Developments

Since 2020, officials had maintained a comprehensive restriction on the purchase and ignition of firecrackers during Diwali due to their major role to the deadly haze that blankets the city as winter approaches.

Yet recently, the recently formed city government appealed to the judicial authority to propose a easing of the restrictions.

They proposed allowing "green crackers" – previously doubted by conservation groups as being only about 30% reduced emissions – as a compromise between "cultural practices and ecological concerns".

Court Verdict and Implementation

Much to the frustration of environmental and health campaigners, judges approved the appeal, mandating that environmentally conscious fireworks could be set off during specific periods throughout the Diwali.

Throughout the festival evening, there was considerable disregard of the regulated periods across the city, with insufficient monitoring regarding whether the fireworks being used were actually the eco-friendly variety.

Several recording stations throughout the capital registered air quality peaking around midnight to extremely hazardous measurements recorded during Diwali in at least recent memory.

International Implications

The widespread use of pyrotechnics during the festival also triggered a controversy with adjacent the neighboring country, with officials in Pakistan's Punjab province pointing to deteriorating atmospheric conditions in their urban centers on pollutants originating in neighboring India following the celebrations.

Chronic Environmental Crisis

Extremely elevated readings of atmospheric toxins in Delhi have persisted as a major issue for fifteen-plus years, with the condition gradually deteriorating.

During Diwali, the amount of toxic particulate matter in the atmosphere has been found to increase dramatically to 70% higher the most severe levels ever recorded in China's capital, which was once viewed as the globally most contaminated metropolis.

Diverse Pollution Factors

The problem in the capital is caused by a mix of different contributors including transportation pollution, dust, building projects, rubbish burning and haze from agricultural fires in neighbouring areas of Punjab and Haryana.

Throughout these areas, agricultural workers regularly burn crop residue to prepare for next season, producing hazardous haze that becomes contained over the capital as cooler air descends.

Medical and Financial Impact

The economic and health impact on the nearly 33 million people living in the capital region is enormous, according to numerous investigations.

The contaminated air leads to elevated rates of neurological, cardiovascular and lung diseases, and can potentially cause malignancies.

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