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Tuesday brought citizens of this heavily contaminated metropolis encountered exposed to dangerously toxic air that registered in the "severe" level.

Record-Breaking Air Quality Readings

Various sections of the city recorded an AQI exceeding 500, which represents a tenfold increase over the safe threshold established by the global health authority.

Certain monitoring stations, levels of dangerous airborne particles soared to of eighteen hundred, equating to 15 to 20 times above safe limits.

Fireworks Prohibition and New Policy Shifts

Beginning in 2020, officials had maintained a total prohibition on the sale and use of pyrotechnics during the Festival of Lights due to their substantial impact to the deadly pollution that covers the city as winter approaches.

Nevertheless recently, the newly elected local government petitioned the supreme court to request a relaxation of the ban.

They proposed allowing "green crackers" – which have been doubted by environmentalists as being only about 30% less polluting – as a balance between "heritage and environment".

Court Verdict and Implementation

To the disappointment of environmental and health activists, the court approved the proposal, stipulating that green firecrackers could be used during limited time windows throughout the celebrations.

During the celebrations, there was considerable flouting of the regulated periods across the metropolis, with minimal monitoring regarding whether the pyrotechnics being used were actually the eco-friendly type.

Many monitoring devices throughout Delhi registered pollution spiking around late evening to some of the worst measurements seen during the festival in at least three years.

Regional Implications

The widespread use of firecrackers during the celebrations also sparked a controversy with adjacent Pakistan, with authorities in Pakistani Punjab province pointing to worsening pollution levels in the city of Lahore on contaminants coming from India following the festivities.

Persistent Pollution Issue

Extremely elevated levels of pollution in the city have continued as a significant challenge for fifteen-plus years, with the situation continuing to worsen.

Around the festival period, the concentration of hazardous airborne contaminants in the air has been found to increase dramatically to 70% higher the worst readings ever recorded in China's capital, which was once considered as the globally most contaminated metropolis.

Multiple Pollution Contributors

The problem in the city is attributed to a combination of multiple factors including automobile exhaust, construction debris, development work, rubbish burning and haze from farm burning in adjacent regions of neighboring agricultural zones.

In these regions, farmers routinely ignite agricultural waste to prepare for next season, creating toxic pollution that remains stagnant over the metropolitan area as colder air sets in.

Medical and Economic Toll

Public health and economic toll on the nearly 33 million residents living in the metropolitan zone is significant, according to multiple research.

This pollution results in elevated rates of nervous system, cardiovascular and respiratory conditions, and can potentially cause oncological diseases.

Air quality crisis is calculated to be responsible for 10,000 early fatalities each year in Delhi.