Lagos State

===Environmental issues===
* Water Pollution In Lagos, water contamination is a significant issue. Serious health concerns have been raised as a result of the unchecked discharge of raw sewage, sediment-carrying runoff, and effluents into the Lagoon system. People are suffering from deadly waterborne illnesses like cholera and diarrhea as a result. The number of Lagos inhabitants who have access to formal clean water is pitifully small, with most of them reliant on the unofficial sector made up of wells. Lagos has a tropical environment with over 2,000 millimeters of annual rainfall, is surrounded by water, however much of the water is unsafe to drink. The bulk of Lagos inhabitants rely on the unofficial sector, which consists of wells, boreholes, rivers, and rains, as there is very little access to formal clean water. The state's daily demand in 2016 was<ref name=":2">{{Cite web |title=Lagos Challenges |url=https://www.coolgeography.co.uk/gcsen/Lagos_Challenges.php#:~:text=Water%20pollution%20is%20a%20major,affecting%20people%20as%20a%20result. |access-date=2022-03-21 |website=www.coolgeography.co.uk}}</ref>
* Air pollution<ref name=":2" />
* Waste<ref name=":2" />
* Traffic congestion<ref name=":2" />
* Noise pollution