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As Tuesday dawned residents of the world's most polluted city were faced with inhaling dangerously toxic air that was classified as the "alarming" level.

Alarming Pollution Levels

Multiple areas of Delhi recorded an air quality index exceeding 500, which represents a tenfold increase over the healthy limit set by the global health authority.

In some locations, concentrations of dangerous airborne particles soared to of eighteen hundred, representing fifteen to twenty times exceeding safe levels.

Pyrotechnics Prohibition and Current Changes

Since 2020, authorities had enforced a comprehensive restriction on the sale and use of pyrotechnics during Diwali due to their major role to the dangerous smog that engulfs the metropolis as the cold season begins.

Nevertheless in recent months, the recently formed city administration petitioned the supreme court to request a modification of the prohibition.

They proposed allowing "environmentally conscious pyrotechnics" – previously doubted by environmental experts as being only roughly 30 percent less polluting – as a compromise between "tradition and public health".

Legal Verdict and Implementation

Much to the frustration of environmental and health campaigners, the court complied with the request, stipulating that eco-friendly pyrotechnics could be set off during specific hours throughout the festival.

During the celebrations, there was considerable disregard of the time restrictions across the capital, with minimal regulation regarding whether the fireworks being used were actually the more environmentally friendly version.

Several recording stations throughout the city registered pollution peaking around midnight to some of the worst levels seen during the festival in at least recent memory.

Regional Consequences

Extensive ignition of pyrotechnics during the celebrations also triggered a dispute with bordering the neighboring country, with representatives in Pakistan's the Punjab region pointing to deteriorating atmospheric conditions in Lahore on pollutants traveling from across the border following the events.

Persistent Environmental Crisis

Alarmingly severe concentrations of atmospheric toxins in the city have remained as a major challenge for more than 15 years, with the condition gradually deteriorating.

During celebratory seasons, the concentration of hazardous particulate matter in the atmosphere has been observed to shoot up to 70% higher the worst levels ever recorded in the Chinese city, which was previously viewed as the globally most contaminated metropolis.

Diverse Contamination Contributors

This crisis in Delhi is resulting from a mix of different contributors including transportation pollution, construction debris, development work, waste incineration and smoke from agricultural fires in neighbouring regions of Punjab and Haryana.

Within these states, farmers routinely burn crop residue to prepare for next season, generating hazardous pollution that then gets trapped over the city as colder air sets in.

Health and Economic Consequences

The economic and health consequences on the nearly 33 million inhabitants residing in the capital region is enormous, according to numerous investigations.

The contaminated air causes high levels of nervous system, heart and circulatory and breathing diseases, and can potentially cause cancer.

The pollution is projected to be causing 10,000 untimely mortalities each year in the capital.