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On Tuesday morning inhabitants of the world's most polluted city found themselves breathing dangerously toxic air that registered in the "critical" category.

Record-Breaking Air Quality Readings

Multiple areas of Delhi recorded an AQI exceeding 500, which translates to ten times the healthy limit recommended by the World Health Organization.

Certain monitoring stations, readings of dangerous airborne particles reached peaks of 1,800, representing 15-20x exceeding healthy levels.

Pyrotechnics Prohibition and New Policy Shifts

Since 2020, the government had enforced a total prohibition on the distribution and bursting of pyrotechnics during celebrations due to their substantial impact to the deadly haze that blankets the city as the cold season sets in.

However earlier this year, the current regional administration appealed to the judicial authority to propose a easing of the restrictions.

Officials advocated for allowing "green crackers" – previously criticized by environmental experts as being only approximately one-third lower impact – as a balance between "heritage and public health".

Court Verdict and Enforcement

Much to the frustration of medical and ecological campaigners, judges approved the appeal, stipulating that environmentally conscious fireworks could be ignited during specific time windows throughout the festival.

On Monday night, there was extensive flouting of the time restrictions across the city, with insufficient monitoring regarding whether the fireworks being used were actually the more environmentally friendly type.

Numerous air quality sensors throughout the city showed pollution spiking around late evening to some of the worst measurements recorded during celebrations in at least three years.

Cross-Border Implications

The proliferation of pyrotechnics during the celebrations also triggered a controversy with bordering the neighboring country, with officials in Pakistani the Punjab region partially attributing declining atmospheric conditions in Lahore on contaminants coming from across the border following the celebrations.

Chronic Pollution Issue

Extremely elevated readings of pollution in Delhi have persisted as a serious problem for more than 15 years, with the condition continuing to worsen.

Around celebratory seasons, the levels of hazardous particulate matter in the air has been documented to increase dramatically to seventy percent above the peak records ever recorded in the Chinese city, which was once considered as the planet's dirtiest urban center.

Diverse Contamination Sources

The problem in Delhi is caused by a combination of various sources including automobile exhaust, construction debris, construction activities, waste incineration and haze from agricultural fires in nearby states of neighboring agricultural zones.

Within these states, agricultural workers regularly set their fields on fire to expedite field preparation, generating hazardous haze that then gets trapped over the city as colder air sets in.

Medical and Economic Toll

Public health and economic consequences on the approximately 33 million inhabitants living in the metropolitan zone is enormous, according to numerous investigations.

These hazardous conditions leads to increased incidence of nervous system, heart and circulatory and respiratory conditions, and can potentially cause oncological diseases.

Air quality crisis is calculated to be causing 10,000 early deaths annually in the city.