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Tuesday brought residents of the world's most polluted city were faced with breathing dangerously toxic air that fell into the "alarming" category.

Record-Breaking Pollution Measurements

Multiple areas of the city recorded an pollution measurement above 500, which translates to 10x the recommended level established by the global health authority.

In some locations, concentrations of toxic particulate matter hit highs of 1800, representing fifteen to twenty times higher than safe levels.

Pyrotechnics Ban and New Developments

For the past four years, authorities had implemented a total prohibition on the purchase and ignition of pyrotechnics during the Festival of Lights due to their significant contribution to the dangerous pollution that engulfs the capital as colder weather sets in.

Nevertheless recently, the recently formed local government approached the supreme court to request a modification of the restrictions.

Officials advocated for allowing "environmentally conscious pyrotechnics" – which have been questioned by environmentalists as being only roughly 30 percent less polluting – as a compromise between "tradition and ecological concerns".

Court Ruling and Implementation

To the disappointment of public health and environmental advocates, judges agreed to the proposal, mandating that environmentally conscious fireworks could be ignited during specific time windows throughout the celebrations.

During the celebrations, there was widespread disregard of the time restrictions across the city, with minimal regulation regarding whether the fireworks being used were actually the eco-friendly variety.

Many recording stations throughout Delhi showed air quality reaching highest levels around late evening to some of the worst readings observed during celebrations in at least three years.

Regional Consequences

The proliferation of pyrotechnics during the celebrations also sparked a blame game with bordering Pakistan, with officials in Pakistani Punjab province partially attributing declining pollution levels in the city of Lahore on pollutants traveling from across the border following the celebrations.

Chronic Pollution Problem

The dangerously high readings of air contamination in the capital have continued as a serious problem for fifteen-plus years, with the condition showing no improvement.

Around Diwali, the concentration of toxic particulate matter in the environment has been documented to spike to significantly exceeding the peak readings ever measured in China's capital, which was previously regarded as the globally most contaminated metropolis.

Diverse Contamination Contributors

The problem in Delhi is resulting from a convergence of various sources including heavy vehicle emissions, dust, building projects, rubbish burning and smoke from agricultural fires in adjacent states of Punjab and Haryana.

In these regions, agricultural workers regularly set their fields on fire to clear them quickly, producing hazardous haze that remains stagnant over the capital as winter air descends.

Medical and Financial Impact

Both financial and medical consequences on the approximately 33 million people calling home the capital region is substantial, according to various research.

This pollution causes elevated rates of nervous system, cardiovascular and lung conditions, and can result in cancer.

The pollution is estimated to be accounting for 10,000 premature deaths each year in the capital.