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Tuesday brought inhabitants of the world's most polluted city were faced with breathing severely hazardous air that registered in the "alarming" range.

Record-Breaking Air Quality Measurements

Several parts of the city recorded an pollution measurement above 500, which translates to 10x the recommended threshold set by the WHO.

In some locations, levels of dangerous airborne particles reached peaks of eighteen hundred, amounting to 15 to 20 times above safe limits.

Pyrotechnics Ban and New Developments

Beginning in 2020, the government had enforced a complete ban on the distribution and bursting of pyrotechnics during Diwali due to their major role to the deadly smog that engulfs the metropolis as the cold season begins.

Yet earlier this year, the newly elected regional leadership appealed to the highest court to seek a modification of the restrictions.

They proposed allowing "eco-friendly fireworks" – which have been questioned by environmental experts as being only about 30% lower impact – as a compromise between "cultural practices and public health".

Legal Decision and Implementation

Much to the frustration of environmental and health advocates, judicial authorities agreed to the request, specifying that environmentally conscious fireworks could be ignited during designated time windows throughout the Diwali.

During the celebrations, there was considerable violation of the time restrictions across the metropolis, with insufficient regulation regarding whether the pyrotechnics being used were actually the more environmentally friendly type.

Many monitoring devices throughout Delhi registered air quality spiking around the night hours to extremely hazardous readings observed during the festival in at least the past three years.

Regional Effects

Extensive ignition of fireworks during the festival also triggered a blame game with bordering the neighboring country, with representatives in Pakistan's Punjab pointing to worsening atmospheric conditions in their urban centers on contaminants traveling from neighboring India following the festivities.

Persistent Pollution Problem

Extremely elevated concentrations of air contamination in the capital have persisted as a significant problem for over a decade and a half, with the situation gradually deteriorating.

Around the festival period, the levels of dangerous airborne contaminants in the atmosphere has been documented to increase dramatically to seventy percent above the most severe readings ever documented in China's capital, which was once viewed as the globally most contaminated metropolis.

Diverse Contamination Sources

This crisis in Delhi is resulting from a mix of multiple factors including transportation pollution, dust, building projects, waste incineration and smoke from crop residue ignition in neighbouring regions of neighboring agricultural zones.

In these regions, agricultural workers regularly set their fields on fire to expedite field preparation, creating toxic smog that remains stagnant over the city as cooler air descends.

Health and Financial Toll

Both financial and medical toll on the nearly 33 million people residing in the capital region is substantial, according to multiple research.

The contaminated air leads to high levels of nervous system, heart and circulatory and respiratory diseases, and can result in cancer.

Environmental contamination is projected to be accounting for ten thousand untimely mortalities each year in Delhi.