Tuesday brought inhabitants of the world's most polluted city were faced with inhaling extremely polluted air that was classified as the "critical" range.
Several parts of Delhi recorded an pollution measurement over 500, which represents a tenfold increase over the recommended level recommended by the World Health Organization.
Particular areas, levels of toxic particulate matter hit highs of 1,800, amounting to 15 to 20 times higher than acceptable limits.
For the past four years, the government had maintained a total prohibition on the distribution and bursting of pyrotechnics during celebrations due to their significant contribution to the hazardous smog that blankets the capital as winter approaches.
Nevertheless earlier this year, the current local government appealed to the highest court to seek a modification of the ban.
Officials advocated for allowing "environmentally conscious pyrotechnics" – historically doubted by environmentalists as being only about 30% lower impact – as a balance between "tradition and ecological concerns".
To the disappointment of public health and environmental campaigners, judicial authorities complied with the appeal, mandating that environmentally conscious fireworks could be set off during designated periods throughout the festival.
Throughout the festival evening, there was widespread violation of the regulated periods across the capital, with little regulation regarding whether the firecrackers being used were actually the more environmentally friendly variety.
Several recording stations throughout the capital recorded contamination spiking around the night hours to the most severe levels recorded during the festival in at least the past three years.
Extensive ignition of fireworks during the festival also triggered a blame game with adjacent Pakistan, with representatives in Pakistani the Punjab region pointing to worsening air quality in their urban centers on pollutants originating in neighboring India following the events.
Alarmingly severe levels of air contamination in the capital have remained as a serious challenge for more than 15 years, with the situation continuing to worsen.
During celebratory seasons, the concentration of dangerous airborne contaminants in the environment has been documented to spike to seventy percent above the most severe readings ever recorded in Beijing, which was formerly considered as the globally most contaminated urban center.
This crisis in the capital is resulting from a mix of multiple factors including heavy vehicle emissions, construction debris, construction activities, waste incineration and pollutants from agricultural fires in adjacent regions of farming communities.
In these regions, farmers routinely ignite agricultural waste to expedite field preparation, producing dangerous smog that remains stagnant over the metropolitan area as colder air sets in.
Both financial and medical toll on the roughly thirty-three million people residing in the capital region is enormous, according to numerous research.
The contaminated air causes increased incidence of neurological, cardiovascular and lung disorders, and can potentially cause malignancies.
Environmental contamination is calculated to be causing ten thousand early deaths annually in the city.
A seasoned tech journalist and digital strategist with over a decade of experience covering UK innovation and startup ecosystems.