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Tuesday brought inhabitants of this heavily contaminated metropolis found themselves breathing severely hazardous air that fell into the "alarming" level.

Extremely High Air Quality Measurements

Various sections of the capital registered an pollution measurement exceeding 500, which represents ten times the recommended limit recommended by the global health authority.

Particular areas, readings of toxic particulate matter reached peaks of eighteen hundred, amounting to 15 to 20 times exceeding healthy levels.

Firecracker Ban and New Changes

For the past four years, the government had enforced a complete ban on the distribution and bursting of pyrotechnics during the Festival of Lights due to their major role to the deadly haze that blankets the city as colder weather begins.

However recently, the current local leadership petitioned the judicial authority to seek a modification of the restrictions.

They proposed allowing "eco-friendly fireworks" – historically questioned by conservation groups as being only approximately one-third lower impact – as a middle ground between "cultural practices and public health".

Legal Verdict and Reality

To the disappointment of public health and environmental advocates, judicial authorities complied with the request, specifying that environmentally conscious fireworks could be used during limited periods throughout the Diwali.

Throughout the festival evening, there was widespread flouting of the designated hours across the capital, with little monitoring regarding whether the fireworks being used were actually the more environmentally friendly variety.

Several recording stations throughout Delhi recorded contamination peaking around the night hours to extremely hazardous measurements recorded during the festival in at least three years.

International Effects

The widespread use of firecrackers during the celebrations also triggered a controversy with neighbouring Pakistan, with authorities in Pakistan's Punjab province partly blaming deteriorating air quality in the city of Lahore on pollutants coming from neighboring India following the celebrations.

Chronic Pollution Issue

The dangerously high levels of atmospheric toxins in Delhi have continued as a serious challenge for over a decade and a half, with the situation showing no improvement.

Around celebratory seasons, the levels of toxic particles in the environment has been observed to shoot up to 70% higher the most severe readings ever recorded in Beijing, which was formerly viewed as the globally most contaminated metropolis.

Multiple Pollution Contributors

This crisis in the capital is resulting from a combination of multiple factors including transportation pollution, airborne particles, development work, garbage fires and haze from farm burning in neighbouring states of farming communities.

In these regions, rural residents routinely set their fields on fire to clear them quickly, generating toxic pollution that becomes contained over the capital as colder air descends.

Health and Financial Impact

Both financial and medical consequences on the roughly thirty-three million inhabitants living in the metropolitan zone is enormous, according to various research.

This pollution causes increased incidence of neurological, heart and circulatory and lung diseases, and can even lead to cancer.

Air quality crisis is calculated to be responsible for approximately 10k early mortalities per year in Delhi.