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On Tuesday morning residents of the planet's dirtiest urban center were faced with exposed to severely hazardous air that fell into the "alarming" level.

Alarming Air Quality Readings

Various sections of Delhi recorded an air quality index over 500, which represents ten times the recommended limit recommended by the World Health Organization.

In some locations, concentrations of toxic particulate matter reached peaks of 1800, amounting to 15-20x higher than healthy levels.

Pyrotechnics Restrictions and New Developments

For the past four years, officials had implemented a complete ban on the distribution and bursting of fireworks during the Festival of Lights due to their significant contribution to the deadly smog that blankets the capital as winter approaches.

Yet earlier this year, the recently formed regional leadership appealed to the judicial authority to seek a relaxation of the prohibition.

Officials advocated for allowing "environmentally conscious pyrotechnics" – previously doubted by environmental experts as being only approximately one-third less polluting – as a balance between "tradition and public health".

Court Decision and Implementation

Much to the frustration of environmental and health advocates, the court approved the request, specifying that green firecrackers could be ignited during specific time windows throughout the Diwali.

On Monday night, there was extensive violation of the time restrictions across the metropolis, with minimal regulation regarding whether the fireworks being used were actually the eco-friendly type.

Numerous air quality sensors throughout Delhi showed pollution reaching highest levels around midnight to some of the worst levels observed during the festival in at least the past three years.

Regional Consequences

Extensive ignition of firecrackers during Diwali also initiated a blame game with neighbouring the neighboring country, with representatives in Pakistan's the Punjab region partially attributing worsening air quality in Lahore on contaminants originating in across the border following the celebrations.

Persistent Environmental Problem

Alarmingly severe concentrations of pollution in Delhi have remained as a significant problem for over a decade and a half, with the condition gradually deteriorating.

During celebratory seasons, the concentration of hazardous particulate matter in the atmosphere has been found to shoot up to significantly exceeding the worst readings ever documented in Beijing, which was once regarded as the globally most contaminated metropolis.

Multiple Pollution Factors

The problem in Delhi is caused by a mix of various sources including automobile exhaust, dust, construction activities, garbage fires and smoke from agricultural fires in adjacent states of Punjab and Haryana.

Throughout these areas, rural residents regularly ignite agricultural waste to expedite field preparation, producing toxic haze that becomes contained over the city as cooler air descends.

Health and Economic Impact

Both financial and medical toll on the approximately 33 million people calling home the metropolitan zone is substantial, according to various research.

These hazardous conditions causes elevated rates of neurological, heart and circulatory and breathing diseases, and can potentially cause malignancies.

The pollution is estimated to be responsible for ten thousand untimely mortalities each year in the city.