Cameroun (1) Development (1) Causes (1) Varieties (1) Composition (1) Assaying (1) Indexes (1) Sensitive plant (1) City dwellers (1) Restrooms (1) Suspended sediments (1) Metallogeny (1) Wealth (1) Water (1) Valves (1) Turbidity (1) Toilets (1) State, The (1) Sewage (1) Pollution (1) Pollutants (1) Pinnularia (1) Percentage (1) Navicula (1) Limnology (1) Licenses (1) Indicators (Biology) (1) Impact (1) Hand (1) Food--Composition (1)