No. 25: Port Harcourt, Nigeria
Problems with waste disposal continue to contaminate the rivers of Nigeria
Garbage and sewage flow freely, creating a rich environment for the growth of
water-borne diseases
No. 23: Maputo, Mozambique
lack of sanitation processes
healthy life expectancy at birth is 35 for males and 36 for females, thanks in
part to poor sanitation and drinkable water.
No. 20: Nouakchott, Mauritania
No. 19: Conakry, Guinea Republic
large percentage of the population continues to live without access to improved
water or sanitation
No. 17: Pointe Noire, Congo
air pollution from vehicle emissions and unbridled water contamination from the
mass unloading of raw sewage in the city's water su
No. 15: Ouagadougou, Burkina Faso
troubling levels of air pollution, which present a daily strain on lung health