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On Tuesday morning inhabitants of the world's most polluted city were faced with breathing dangerously toxic air that was classified as the "alarming" range.

Alarming Air Quality Levels

Several parts of the capital recorded an pollution measurement over 500, which represents a tenfold increase over the healthy threshold established by the WHO.

Certain monitoring stations, levels of toxic particulate matter reached peaks of eighteen hundred, representing 15 to 20 times above safe levels.

Pyrotechnics Prohibition and Recent Changes

Beginning in 2020, the government had maintained a comprehensive restriction on the purchase and ignition of fireworks during celebrations due to their significant contribution to the dangerous smog that engulfs the city as colder weather sets in.

Nevertheless in recent months, the newly elected city administration approached the judicial authority to request a modification of the restrictions.

The suggestion was allowing "environmentally conscious pyrotechnics" – historically criticized by environmental experts as being only roughly 30 percent less polluting – as a middle ground between "tradition and environment".

Legal Decision and Reality

To the disappointment of public health and environmental activists, the court complied with the appeal, mandating that environmentally conscious fireworks could be used during specific hours throughout the celebrations.

Throughout the festival evening, there was considerable disregard of the designated hours across the metropolis, with minimal monitoring regarding whether the pyrotechnics being used were actually the supposedly greener type.

Several monitoring devices throughout the capital showed air quality spiking around midnight to extremely hazardous levels recorded during the festival in at least the past three years.

Regional Effects

The proliferation of pyrotechnics during the celebrations also initiated a dispute with bordering the neighboring country, with authorities in Pakistan's the Punjab region partly blaming worsening atmospheric conditions in their urban centers on contaminants traveling from India following the celebrations.

Chronic Pollution Crisis

The dangerously high levels of atmospheric toxins in the city have remained as a significant problem for fifteen-plus years, with the situation continuing to worsen.

Around the festival period, the concentration of hazardous particulate matter in the air has been observed to shoot up to significantly exceeding the most severe readings ever recorded in China's capital, which was formerly regarded as the globally most contaminated city.

Various Contamination Sources

This crisis in the capital is attributed to a combination of different contributors including transportation pollution, dust, building projects, rubbish burning and smoke from farm burning in neighbouring areas of farming communities.

Throughout these areas, rural residents illegally set their fields on fire to clear them quickly, creating hazardous smog that then gets trapped over the capital as cooler air descends.

Health and Financial Toll

The economic and health impact on the nearly 33 million inhabitants calling home the capital region is significant, according to various research.

The contaminated air causes increased incidence of nervous system, heart and circulatory and lung conditions, and can result in oncological diseases.

The pollution is estimated to be responsible for 10,000 early fatalities per year in Delhi.