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On Tuesday morning residents of the world's most polluted city were faced with breathing extremely polluted air that fell into the "critical" level.

Extremely High Air Quality Levels

Multiple areas of Delhi registered an pollution measurement over 500, which translates to a tenfold increase over the recommended level recommended by the World Health Organization.

Particular areas, levels of toxic particulate matter hit highs of eighteen hundred, equating to 15 to 20 times above acceptable standards.

Fireworks Restrictions and Current Developments

Since 2020, officials had implemented a complete ban on the purchase and ignition of pyrotechnics during celebrations due to their substantial impact to the dangerous smog that blankets the metropolis as the cold season sets in.

Yet earlier this year, the current local government petitioned the judicial authority to propose a easing of the ban.

The suggestion was allowing "environmentally conscious pyrotechnics" – previously questioned by conservation groups as being only roughly 30 percent reduced emissions – as a balance between "tradition and public health".

Court Ruling and Enforcement

To the disappointment of environmental and health campaigners, judicial authorities complied with the request, mandating that green firecrackers could be ignited during designated hours throughout the festival.

On Monday night, there was extensive disregard of the time restrictions across the city, with insufficient monitoring regarding whether the firecrackers being used were actually the supposedly greener version.

Several recording stations throughout Delhi registered contamination spiking around midnight to the most severe measurements observed during Diwali in at least three years.

Regional Effects

The proliferation of firecrackers during the celebrations also initiated a blame game with bordering the neighboring country, with authorities in Pakistani Punjab province partially attributing worsening pollution levels in Lahore on hazardous particles originating in India following the festivities.

Chronic Environmental Issue

The dangerously high levels of pollution in the city have remained as a serious challenge for over a decade and a half, with the situation gradually deteriorating.

During the festival period, the levels of dangerous airborne contaminants in the environment has been observed to shoot up to 70% higher the most severe records ever measured in Beijing, which was formerly viewed as the planet's dirtiest metropolis.

Various Pollution Factors

The problem in the city is resulting from a mix of different contributors including heavy vehicle emissions, construction debris, building projects, rubbish burning and pollutants from farm burning in neighbouring regions of Punjab and Haryana.

Throughout these areas, rural residents routinely ignite agricultural waste to prepare for next season, producing toxic pollution that then gets trapped over the capital as cooler air descends.

Medical and Economic Toll

The economic and health consequences on the roughly thirty-three million residents living in the metropolitan zone is significant, according to various studies.

The contaminated air leads to increased incidence of nervous system, heart and circulatory and lung disorders, and can potentially cause cancer.

Air quality crisis is projected to be responsible for 10,000 untimely deaths per year in Delhi.