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Tuesday brought residents of the world's most polluted city found themselves inhaling severely hazardous air that was classified as the "critical" range.

Record-Breaking Air Quality Readings

Various sections of the city showed an air quality index exceeding 500, which translates to 10x the recommended level set by the WHO.

Certain monitoring stations, readings of toxic particulate matter reached peaks of 1800, amounting to 15-20x higher than safe standards.

Pyrotechnics Restrictions and New Policy Shifts

Since 2020, authorities had enforced a comprehensive restriction on the distribution and bursting of firecrackers during celebrations due to their major role to the dangerous pollution that blankets the city as the cold season approaches.

Yet earlier this year, the current regional administration approached the judicial authority to propose a modification of the prohibition.

The suggestion was allowing "environmentally conscious pyrotechnics" – historically questioned by conservation groups as being only roughly 30 percent lower impact – as a middle ground between "heritage and ecological concerns".

Legal Decision and Enforcement

Despite concerns of environmental and health activists, judicial authorities approved the request, specifying that green firecrackers could be set off during limited periods throughout the Diwali.

During the celebrations, there was considerable violation of the designated hours across the metropolis, with little enforcement regarding whether the pyrotechnics being used were actually the more environmentally friendly variety.

Several recording stations throughout the city registered pollution reaching highest levels around midnight to some of the worst readings seen during celebrations in at least three years.

Cross-Border Implications

The proliferation of fireworks during the celebrations also triggered a dispute with adjacent Pakistan, with representatives in Pakistan's Punjab pointing to worsening air quality in Lahore on pollutants originating in India following the festivities.

Chronic Environmental Problem

Extremely elevated readings of air contamination in the capital have remained as a major problem for more than 15 years, with the situation gradually deteriorating.

Near celebratory seasons, the levels of toxic particles in the air has been found to spike to significantly exceeding the most severe levels ever measured in China's capital, which was once viewed as the globally most contaminated metropolis.

Various Pollution Sources

The situation in the capital is caused by a combination of different contributors including heavy vehicle emissions, dust, building projects, garbage fires and pollutants from agricultural fires in adjacent states of farming communities.

In these regions, rural residents illegally burn crop residue to clear them quickly, generating toxic smog that remains stagnant over the city as colder air arrives.

Health and Financial Impact

Both financial and medical toll on the roughly thirty-three million inhabitants living in the metropolitan zone is substantial, according to multiple investigations.

This pollution causes high levels of nervous system, heart and circulatory and lung conditions, and can even lead to cancer.

The pollution is projected to be accounting for approximately 10k untimely mortalities annually in the capital.