No. 3: Antananarivo, Madagascar
Health & sanitation index: 30.1
Despite being of the most diverse countries in terms of flora and fauna, Madagascar faces its series of pollution issues, especially in the capital city of Antananarivo. The rapid urbanization and industrialization of the area has led to high levels of air pollution, further enhanced by the massive deforestation. Water pollution has also become a problem in Antananarivo, largely due to emissions for the local industrial facilities.
