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On Tuesday morning inhabitants of the world's most polluted city were faced with breathing extremely polluted air that fell into the "critical" level.

Extremely High Air Quality Measurements

Multiple areas of the capital registered an AQI exceeding 500, which translates to ten times the recommended level established by the WHO.

Certain monitoring stations, levels of PM2.5 and PM10 reached peaks of 1800, representing 15 to 20 times higher than acceptable limits.

Firecracker Prohibition and Recent Changes

Since 2020, the government had implemented a total prohibition on the purchase and ignition of pyrotechnics during celebrations due to their significant contribution to the dangerous haze that engulfs the city as colder weather approaches.

Nevertheless recently, the current local administration approached the highest court to propose a easing of the prohibition.

The suggestion was allowing "environmentally conscious pyrotechnics" – which have been questioned by environmental experts as being only approximately one-third lower impact – as a balance between "cultural practices and public health".

Court Verdict and Reality

Much to the frustration of medical and ecological advocates, judicial authorities approved the proposal, stipulating that green firecrackers could be set off during designated periods throughout the Diwali.

On Monday night, there was considerable disregard of the time restrictions across the city, with insufficient regulation regarding whether the pyrotechnics being used were actually the eco-friendly variety.

Numerous monitoring devices throughout the capital recorded pollution reaching highest levels around the night hours to the most severe readings seen during Diwali in at least three years.

Regional Consequences

The proliferation of fireworks during the festival also initiated a blame game with adjacent the neighboring country, with authorities in Pakistan's the Punjab region pointing to declining air quality in Lahore on contaminants coming from across the border following the celebrations.

Chronic Pollution Crisis

The dangerously high concentrations of air contamination in the capital have continued as a major problem for fifteen-plus years, with the situation continuing to worsen.

Around Diwali, the amount of toxic particles in the atmosphere has been observed to increase dramatically to seventy percent above the worst levels ever recorded in Beijing, which was once viewed as the globally most contaminated metropolis.

Diverse Contamination Sources

The situation in Delhi is resulting from a mix of different contributors including heavy vehicle emissions, airborne particles, construction activities, waste incineration and pollutants from farm burning in adjacent areas of neighboring agricultural zones.

In these regions, farmers routinely ignite agricultural waste to clear them quickly, creating hazardous haze that then gets trapped over the capital as colder air arrives.

Medical and Economic Impact

Both financial and medical impact on the roughly thirty-three million residents residing in the capital region is significant, according to various studies.

These hazardous conditions causes high levels of nervous system, heart and circulatory and respiratory disorders, and can even lead to oncological diseases.

Environmental contamination is estimated to be causing approximately 10k premature fatalities per year in the capital.