The megacity Rises to Toxic Smog Post Diwali

On Tuesday morning residents of the world's most polluted city found themselves inhaling severely hazardous air that registered in the "critical" category.

Alarming Pollution Levels

Several parts of Delhi showed an AQI over 500, which translates to 10x the healthy limit recommended by the global health authority.

In some locations, levels of toxic particulate matter soared to of 1800, amounting to fifteen to twenty times exceeding safe standards.

Firecracker Prohibition and New Developments

Since 2020, officials had enforced a complete ban on the sale and use of fireworks during Diwali due to their significant contribution to the hazardous haze that blankets the city as colder weather begins.

Yet in recent months, the newly elected city government approached the supreme court to propose a relaxation of the restrictions.

They proposed allowing "environmentally conscious pyrotechnics" – previously criticized by conservation groups as being only about 30% lower impact – as a balance between "tradition and ecological concerns".

Court Verdict and Reality

Much to the frustration of medical and ecological advocates, judicial authorities approved the proposal, stipulating that green firecrackers could be set off during limited periods throughout the celebrations.

On Monday night, there was considerable disregard of the designated hours across the capital, with insufficient monitoring regarding whether the firecrackers being used were actually the eco-friendly variety.

Several air quality sensors throughout the city showed pollution peaking around midnight to extremely hazardous readings seen during the festival in at least recent memory.

International Implications

The proliferation of firecrackers during the festival also sparked a controversy with neighbouring the neighboring country, with officials in Pakistani the Punjab region partially attributing declining atmospheric conditions in Lahore on pollutants originating in neighboring India following the celebrations.

Chronic Environmental Issue

The dangerously high levels of air contamination in the capital have continued as a significant challenge for over a decade and a half, with the problem continuing to worsen.

Near celebratory seasons, the concentration of toxic particles in the environment has been found to shoot up to significantly exceeding the peak levels ever recorded in the Chinese city, which was formerly considered as the world's most polluted city.

Diverse Pollution Factors

The problem in Delhi is attributed to a mix of multiple factors including heavy vehicle emissions, airborne particles, building projects, garbage fires and haze from farm burning in neighbouring states of Punjab and Haryana.

Throughout these areas, agricultural workers illegally set their fields on fire to clear them quickly, creating hazardous haze that then gets trapped over the city as winter air arrives.

Public Health and Financial Toll

Both financial and medical impact on the nearly 33 million people living in the Delhi area is significant, according to numerous research.

These hazardous conditions results in increased incidence of neurological, cardiovascular and breathing disorders, and can potentially cause oncological diseases.

Environmental contamination is calculated to be accounting for approximately 10k premature deaths annually in the capital.