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As Tuesday dawned inhabitants of this heavily contaminated metropolis found themselves exposed to extremely polluted air that was classified as the "alarming" level.

Record-Breaking Air Quality Readings

Various sections of the city recorded an AQI over 500, which translates to 10x the healthy limit set by the global health authority.

Certain monitoring stations, concentrations of dangerous airborne particles soared to of 1,800, equating to fifteen to twenty times higher than healthy limits.

Pyrotechnics Prohibition and Current Developments

Since 2020, authorities had maintained a total prohibition on the distribution and bursting of pyrotechnics during celebrations due to their significant contribution to the dangerous haze that blankets the metropolis as colder weather sets in.

Yet earlier this year, the current city government appealed to the judicial authority to request a relaxation 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 "cultural practices and ecological concerns".

Judicial Ruling and Implementation

Much to the frustration of public health and environmental activists, judicial authorities approved the request, mandating that environmentally conscious fireworks could be used during limited hours throughout the Diwali.

Throughout the festival evening, there was extensive disregard of the designated hours across the city, with little enforcement regarding whether the fireworks being used were actually the more environmentally friendly version.

Many recording stations throughout Delhi registered air quality reaching highest levels around late evening to some of the worst measurements observed during the festival in at least recent memory.

Regional Effects

Extensive ignition of firecrackers during Diwali also sparked a blame game with neighbouring Pakistan, with representatives in Pakistan's Punjab pointing to declining pollution levels in the city of Lahore on hazardous particles traveling from across the border following the events.

Long-Standing Environmental Issue

Extremely elevated concentrations of atmospheric toxins in the capital have continued as a major issue for over a decade and a half, with the condition continuing to worsen.

During Diwali, the concentration of dangerous particulate matter in the atmosphere has been found to shoot up to seventy percent above the most severe readings ever documented in China's capital, which was once considered as the globally most contaminated urban center.

Multiple Pollution Contributors

The situation in Delhi is caused by a combination of different contributors including heavy vehicle emissions, airborne particles, building projects, rubbish burning and smoke from crop residue ignition in neighbouring states of Punjab and Haryana.

Within these states, farmers regularly set their fields on fire to prepare for next season, creating toxic pollution that then gets trapped over the capital as winter air sets in.

Health and Financial Toll

Public health and economic toll on the roughly thirty-three million people living in the Delhi area is significant, according to various research.

These hazardous conditions causes high levels of nervous system, cardiovascular and respiratory conditions, and can even lead to oncological diseases.

The pollution is projected to be causing approximately 10k premature mortalities annually in the capital.