Terms of the offer
Explore the top 10 most polluted cities in the world 2024. Discover PM2.5 levels, smoking equivalents, and WHO guidelines. Notably, Byrnihat, situated on the border of Assam and Meghalaya, has been identified as the most polluted city in the world , recording a staggering annual average PM2.5 concentration of 128.2 μg/m³, meanwhile, Delhi remains the most polluted national capital globally for the sixth consecutive year, with an average PM2.5 concentration of 91.8 μg... Explore the top 10 most polluted cities in 2025, their air quality challenges, health and economic impacts, and the role of monitoring in improving clean air. Discover real-time top 100 most polluted cities worldwide with AQI Ranking 2025. Stay informed on global air quality at a glance.
