Pakistan Tops the List of the Most Polluted Countries Globally.. Asian Cities Suffocate in Smoke

A recent study revealed that Pakistan topped the list of the most polluted countries in the world in 2025, a serious indicator reflecting the worsening global air quality crisis. According to the report, the concentration of dangerous fine particles (PM2.5) in the country exceeded the limit recommended by the World Health Organization by up to 13 times, putting millions of residents at serious health risks.

The Swiss company "IQAir," specialized in air quality monitoring, reported in its annual report that 130 countries and regions out of 143 failed to meet the World Health Organization's guidelines, which set the safe limit at less than 5 micrograms per cubic meter.
In contrast, only 13 countries and regions managed to maintain pollution levels within acceptable limits, compared to only 7 countries in 2024, indicating a slight but insufficient improvement.

Bangladesh came in second place, followed by Tajikistan in third, while Chad – which topped the list in 2024 – fell to fourth place. This ranking reflects the continued concentration of the most polluted countries in Asia, where industrial emissions and urban congestion are worsening.

At the city level, the Indian city of Loni topped the list of the most polluted cities in the world, with an average of 112.5 micrograms of fine particles, followed by the city of Hotan in the Xinjiang region of China with an average of 109.6 micrograms.
The report noted that all of the 25 most polluted cities globally are concentrated in India, Pakistan, and China, highlighting a suffocating environmental crisis in these areas.

The percentage of cities meeting the World Health Organization's standards saw a significant decline, dropping to 14% in 2025 compared to 17% the previous year.
The massive wildfires in Canada also contributed to worsening the situation, as the effects of pollution extended to the United States and reached Europe, clearly indicating the globalization of the air crisis.

Despite the grim picture, some countries emerged as positive models, as Australia, Iceland, Estonia, and Panama managed to maintain pollution levels within safe limits, reflecting the effectiveness of their environmental policies and stringent measures to reduce emissions.

These figures confirm that air pollution remains one of the most serious environmental and health challenges in the world, with increasing evidence linking it to respiratory and heart diseases, necessitating urgent international action to contain the crisis before it turns into a global health disaster.