
No. 1: Baku, Azerbaijan Mercer Health and Sanitation Index Score: 27.6 Surrounded by Iran, Georgia, Russia and Armenia on the Caspian Sea, Azerbaijan has long been an oil hub. As a consequence, Baku, the capital, suffers from life-threatening levels of air pollution emitted from oil drilling and shipping. No. 2: Dhaka, Bangladesh Mercer Health and Sanitation Index Score:...