Lagos Lagoon

It is one of the ten lagoons in Lagos State and the largest in the Gulf of Guinea which spans over 6,000 square kilometers (2,300 sq mi).Pollution by urban and industrial waste is a major problem as a large amount of wastewater is released into the lagoon daily.Narrow winding channels connect the system through a broad band of coastal swamps and rivers, as far away as Sapele, 250 km to the east.According to WHO and Africa UN Environment, Lagos Lagoon is the most polluted African ecosystem with its major wastes coming from oil and textile industry as well as urban sewage carried by the Ogun and Osun rivers.[4] In a study conducted, it was found that these wastes disposed in the lagoon are a threat to fish and mammal biology, which can in turn be harmful to humans.
Map showing relative position of Lagos Lagoon to urban areas, harbour and port areas of Lagos Metropolitan Area
Lagos State, NigerialagoonNigeriaLagos IslandVictoria IslandIkoroduYorubaPortuguesetautological place nameAtlantic OceanGulf of Guineaaquatic organismsbargesOgun RiverOsun Rivermangrove swampLagos Metropolitan Areasand spitPollutionindustrial wastewastewaterThird Mainland BridgeLekki LagoonSapelemegacitiesecosystemsand miningdredgingmetalsmercurycadmiumorganotins