Top 7 Dirtiest Cities in the World

No. 6: Addis Ababa, Ethiopia

Addis Ababa, EthiopiaPublic Domain Image: Public Domain

Health & sanitation index: 37.9

The Ethiopian capital faces one of the biggest pollution issues on the entire African continent. Addis Ababa’s insalubrities, and in particular the water pollution that leads to a high infant mortality rate and a high percentage of water-borne diseases, are largely caused by the complete lack of appropriate sanitation programs.