India, March 26 -- Chad ranked as Africa's most polluted country in 2025, according to the latest global ranking report by IQAir, Swiss-based air quality technology firm.

IQAir released its 8th annual World Air Quality Report on March 24, 2026, offering a comprehensive analysis of global air pollution data from 2025 and highlighting persistent health risks, emerging regional trends and critical monitoring gaps worldwide.

The report highlighted that Chad is the fourth most polluted country globally in 2025, following Pakistan, Bangladesh and Tajikistan, with an annual average PM2.5 concentration of 53.6 micrograms per cubic meter. This level is more than 10 times the World Health Organization's recommended safe threshold.

Located along ...