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Tuesday brought citizens of the world's most polluted city were faced with breathing extremely polluted air that was classified as the "critical" level.

Record-Breaking Pollution Measurements

Various sections of the city showed an air quality index over 500, which equals ten times the safe threshold recommended by the World Health Organization.

Certain monitoring stations, readings of dangerous airborne particles reached peaks of eighteen hundred, amounting to 15 to 20 times higher than safe limits.

Firecracker Restrictions and New Policy Shifts

For the past four years, the government had maintained a comprehensive restriction on the distribution and bursting of pyrotechnics during Diwali due to their major role to the deadly pollution that covers the metropolis as colder weather begins.

However recently, the newly elected city government approached the supreme court to seek a modification of the ban.

They proposed allowing "green crackers" – which have been criticized by environmental experts as being only approximately one-third lower impact – as a balance between "tradition and environment".

Legal Decision and Enforcement

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

During the celebrations, there was considerable disregard of the regulated periods across the metropolis, with minimal regulation regarding whether the firecrackers being used were actually the more environmentally friendly variety.

Many recording stations throughout the capital recorded pollution reaching highest levels around the night hours to the most severe readings recorded during Diwali in at least the past three years.

Regional Consequences

Extensive ignition of pyrotechnics during Diwali also sparked a controversy with bordering Pakistan, with representatives in Pakistan's Punjab partially attributing deteriorating air quality in Lahore on hazardous particles originating in India following the festivities.

Long-Standing Pollution Problem

Extremely elevated levels of pollution in the capital have persisted as a significant problem for fifteen-plus years, with the situation continuing to worsen.

During the festival period, the levels of hazardous particulate matter in the air has been found to increase dramatically to significantly exceeding the peak readings ever measured in Beijing, which was previously regarded as the planet's dirtiest metropolis.

Diverse Contamination Sources

The situation in Delhi is attributed to a mix of different contributors including transportation pollution, dust, building projects, rubbish burning and smoke from crop residue ignition in neighbouring states of Punjab and Haryana.

Within these states, rural residents routinely ignite agricultural waste to expedite field preparation, generating hazardous pollution that remains stagnant over the capital as colder air descends.

Public Health and Financial Toll

Public health and economic impact on the nearly 33 million residents calling home the capital region is enormous, according to numerous research.

These hazardous conditions causes high levels of nervous system, heart and circulatory and breathing disorders, and can result in cancer.

Air quality crisis is projected to be causing 10,000 untimely deaths each year in the capital.