Tuesday brought residents of the world's most polluted city encountered breathing severely hazardous air that registered in the "alarming" range.
Several parts of the capital recorded an AQI exceeding 500, which equals ten times the safe limit recommended by the WHO.
Certain monitoring stations, levels of toxic particulate matter hit highs of 1,800, representing 15-20x higher than safe standards.
For the past four years, the government had maintained a total prohibition on the purchase and ignition of firecrackers during celebrations due to their substantial impact to the deadly smog that covers the city as winter sets in.
Nevertheless recently, the recently formed city leadership approached the judicial authority to propose a relaxation of the restrictions.
They proposed allowing "green crackers" – which have been questioned by environmental experts as being only about 30% reduced emissions – as a middle ground between "heritage and environment".
Despite concerns of environmental and health advocates, judicial authorities agreed to the appeal, mandating that environmentally conscious fireworks could be used during designated periods throughout the Diwali.
During the celebrations, there was considerable flouting of the designated hours across the capital, with little regulation regarding whether the fireworks being used were actually the more environmentally friendly type.
Many recording stations throughout Delhi registered contamination spiking around midnight to some of the worst measurements observed during Diwali in at least three years.
The widespread use of firecrackers during Diwali also triggered a blame game with adjacent the neighboring country, with representatives in Pakistani Punjab province partly blaming worsening atmospheric conditions in their urban centers on contaminants coming from across the border following the celebrations.
Extremely elevated levels of air contamination in the city have continued as a serious problem for over a decade and a half, with the condition gradually deteriorating.
Near the festival period, the levels of dangerous particulate matter in the environment has been documented to increase dramatically to 70% higher the most severe levels ever recorded in Beijing, which was once viewed as the world's most polluted urban center.
This crisis in Delhi is resulting from a mix of different contributors including automobile exhaust, construction debris, construction activities, waste incineration and haze from farm burning in adjacent regions of farming communities.
Within these states, agricultural workers regularly burn crop residue to clear them quickly, generating toxic smog that remains stagnant over the city as winter air sets in.
Public health and economic consequences on the approximately 33 million residents residing in the capital region is enormous, according to multiple research.
This pollution leads to high levels of neurological, heart and circulatory and lung diseases, and can even lead to malignancies.
Environmental contamination is calculated to be responsible for ten thousand premature deaths each year in the capital.
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James Shepherd
James Shepherd
James Shepherd