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Tuesday brought inhabitants of the world's most polluted city were faced with breathing dangerously toxic air that was classified as the "severe" level.

Extremely High Air Quality Measurements

Multiple areas of Delhi recorded an air quality index above 500, which represents 10x the recommended limit recommended by the World Health Organization.

Particular areas, levels of dangerous airborne particles reached peaks of 1,800, amounting to fifteen to twenty times above healthy standards.

Firecracker Restrictions and Recent Changes

Since 2020, the government had enforced a total prohibition on the distribution and bursting of pyrotechnics during Diwali due to their substantial impact to the deadly smog that blankets the city as the cold season approaches.

However in recent months, the newly elected city government appealed to the supreme court to seek a easing of the restrictions.

Officials advocated for allowing "environmentally conscious pyrotechnics" – previously questioned by conservation groups as being only approximately one-third reduced emissions – as a balance between "heritage and ecological concerns".

Court Ruling and Reality

To the disappointment of medical and ecological advocates, judicial authorities approved the proposal, stipulating that eco-friendly pyrotechnics could be used during limited time windows throughout the Diwali.

Throughout the festival evening, there was extensive violation of the regulated periods across the metropolis, with minimal monitoring regarding whether the firecrackers being used were actually the eco-friendly variety.

Several monitoring devices throughout Delhi registered air quality spiking around midnight to the most severe levels seen during Diwali in at least the past three years.

International Effects

Extensive ignition of fireworks during Diwali also sparked a blame game with adjacent the neighboring country, with representatives in Pakistan's Punjab partially attributing worsening atmospheric conditions in Lahore on hazardous particles traveling from neighboring India following the festivities.

Long-Standing Environmental Problem

The dangerously high levels of atmospheric toxins in the city have remained as a significant problem for over a decade and a half, with the problem continuing to worsen.

During the festival period, the levels of hazardous particles in the atmosphere has been found to shoot up to significantly exceeding the most severe records ever documented in Beijing, which was formerly considered as the planet's dirtiest metropolis.

Diverse Contamination Sources

The situation in Delhi is attributed to a combination of various sources including transportation pollution, construction debris, building projects, rubbish burning and pollutants from agricultural fires in neighbouring regions of neighboring agricultural zones.

In these regions, farmers regularly burn crop residue to expedite field preparation, producing dangerous smog that becomes contained over the metropolitan area as colder air sets in.

Public Health and Economic Impact

Public health and economic toll on the roughly thirty-three million inhabitants calling home the Delhi area is significant, according to various studies.

The contaminated air results in elevated rates of nervous system, heart and circulatory and respiratory diseases, and can result in oncological diseases.

The pollution is calculated to be causing approximately 10k premature mortalities annually in Delhi.