The IQAir 2025 World Air Quality Report has identified a capital city with the lowest fine dust concentration level globally. The report ranks capital cities based on their air quality.

According to IQAir data, the majority of the world's most polluted cities are concentrated in China and India, with numerous urban centers in these countries exceeding international health limits for air pollution.

A recent IQAir report highlights Finland as having the cleanest air in Europe, with the highest number of cities meeting air quality standards, while also identifying five of the ten most polluted cities on the continent in a single country.

A report by Swiss air quality monitoring firm IQAir has identified Loni in Uttar Pradesh as the world's most polluted city, with India ranking as the 6th most polluted country globally and three Indian cities among the top four worldwide.

A new IQAir report on global air quality reveals that only 14% of cities worldwide meet WHO guidelines, with Poland's air quality ranking declining due to persistent smog. The report also identifies Indonesia as Southeast Asia's most polluted country, with PM2.5 levels six times the WHO safe limit.

A recent IQAir World Air Quality Report reveals that only 13 countries globally meet safe air quality standards. Switzerland's air quality is deteriorating, ranking below Russia and Germany, while Romania is placed 67th.

A new IQAir report on global air quality reveals that only 14% of cities worldwide meet WHO guidelines, with Poland's performance being particularly disappointing. The country continues to struggle with smog, leading to a drop in its air quality ranking.

The IQAir 2025 World Air Quality Report reveals that only 14% of the world's cities breathed safe air, while identifying Chad and the Democratic Republic of Congo as Africa's most polluted. The report also notes Ghana's air quality improved for the first time since 2021, placing it 11th in Africa.