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On Tuesday morning inhabitants of the world's most polluted city encountered exposed to severely hazardous air that registered in the "alarming" range.

Extremely High Pollution Readings

Several parts of Delhi showed an air quality index above 500, which translates to a tenfold increase over the healthy limit established by the World Health Organization.

Certain monitoring stations, levels of PM2.5 and PM10 soared to of 1,800, amounting to 15 to 20 times higher than acceptable standards.

Firecracker Ban and Recent Developments

Beginning in 2020, the government had maintained a complete ban on the distribution and bursting of firecrackers during celebrations due to their substantial impact to the deadly haze that covers the capital as winter sets in.

Nevertheless recently, the current regional administration approached the judicial authority to propose a relaxation of the ban.

They proposed allowing "environmentally conscious pyrotechnics" – which have been doubted by conservation groups as being only approximately one-third less polluting – as a compromise between "cultural practices and environment".

Court Verdict and Reality

To the disappointment of environmental and health campaigners, judicial authorities complied with the request, specifying that environmentally conscious fireworks could be ignited during limited time windows throughout the Diwali.

During the celebrations, there was widespread violation of the designated hours across the city, with little monitoring regarding whether the fireworks being used were actually the more environmentally friendly variety.

Many monitoring devices throughout the capital recorded pollution reaching highest levels around late evening to the most severe measurements seen during the festival in at least three years.

International Consequences

Extensive ignition of fireworks during the festival also triggered a dispute with adjacent the neighboring country, with officials in Pakistani the Punjab region partly blaming deteriorating air quality in their urban centers on contaminants traveling from India following the celebrations.

Persistent Environmental Crisis

The dangerously high readings of pollution in the capital have remained as a major issue for more than 15 years, with the problem gradually deteriorating.

Near the festival period, the concentration of dangerous airborne contaminants in the environment has been observed to spike to 70% higher the worst levels ever measured in China's capital, which was once viewed as the planet's dirtiest urban center.

Multiple Contamination Factors

The problem in the capital is attributed to a convergence of various sources including transportation pollution, dust, building projects, rubbish burning and pollutants from crop residue ignition in neighbouring areas of farming communities.

Throughout these areas, rural residents regularly set their fields on fire to clear them quickly, creating dangerous pollution that then gets trapped over the metropolitan area as cooler air descends.

Public Health and Financial Consequences

Both financial and medical impact on the roughly thirty-three million inhabitants calling home the metropolitan zone is significant, according to various studies.

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

The pollution is calculated to be causing 10,000 early deaths each year in Delhi.