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On Tuesday morning residents of the planet's dirtiest urban center found themselves inhaling dangerously toxic air that registered in the "alarming" level.

Alarming Pollution Levels

Multiple areas of the city registered an AQI above 500, which represents ten times the recommended level established by the global health authority.

In some locations, levels of PM2.5 and PM10 reached peaks of 1,800, equating to 15-20x exceeding healthy limits.

Firecracker Ban and Current Changes

Beginning in 2020, the government had implemented a complete ban on the distribution and bursting of pyrotechnics during the Festival of Lights due to their significant contribution to the hazardous haze that covers the metropolis as colder weather begins.

Nevertheless in recent months, the current local administration approached the highest court to request a easing of the ban.

Officials advocated for allowing "eco-friendly fireworks" – historically doubted by environmentalists as being only about 30% less polluting – as a balance between "heritage and environment".

Court Decision and Implementation

Much to the frustration of medical and ecological campaigners, judicial authorities agreed to the request, stipulating that environmentally conscious fireworks could be ignited during specific periods throughout the Diwali.

Throughout the festival evening, there was widespread disregard of the designated hours across the city, with insufficient enforcement regarding whether the firecrackers being used were actually the eco-friendly type.

Many air quality sensors throughout Delhi registered pollution peaking around the night hours to extremely hazardous measurements seen during Diwali in at least three years.

International Effects

The proliferation of fireworks during the celebrations also sparked a blame game with adjacent the neighboring country, with representatives in Pakistan's Punjab province partially attributing worsening atmospheric conditions in their urban centers on hazardous particles originating in India following the celebrations.

Long-Standing Environmental Crisis

Alarmingly severe levels of pollution in Delhi have continued as a serious issue for fifteen-plus years, with the situation gradually deteriorating.

Near Diwali, the levels of toxic particulate matter in the environment has been documented to increase dramatically to 70% higher the worst readings ever recorded in the Chinese city, which was once viewed as the globally most contaminated urban center.

Diverse Pollution Factors

The situation in Delhi is resulting from a convergence of multiple factors including heavy vehicle emissions, airborne particles, construction activities, waste incineration and smoke from farm burning in neighbouring states of Punjab and Haryana.

In these regions, rural residents regularly burn crop residue to clear them quickly, producing hazardous pollution that then gets trapped over the capital as cooler air arrives.

Health and Financial Impact

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

These hazardous conditions leads to high levels of nervous system, cardiovascular and respiratory conditions, and can potentially cause oncological diseases.

The pollution is estimated to be responsible for ten thousand early deaths each year in the city.