While the river that Nairobi owes its name to continues to flow, its waters are contaminated by industrial and domestic effluent, so common in many developing cities.
Kuigi jõgi, millele Nairobi linn oma nime võlgneb, voolab ikka edasi, saastavad selle vett linna ja tööstuse heitveed, mis on nii tavaline paljudes kiirelt arenevates linnades.