Water pollution is generally induced by humans. It results from actions of humans carried on to better
self. These could be treated under the various activities that man engages in, that lead to pollution. The
growth of human population, industrial and agricultural practices is the major causes of pollution (Eguabori,
1998). Water pollution becomes worse as a result of overcrowding in urban areas. Agricultural, domestic and
industrial wastes are the major pollutants of agnatic habitats. Sewage is the biggest pollutant of fresh water
when discharged into them. Sewage is the waterborne waster of society and the discharge of untreated
sewage into a river is very enormous and unhealthy. The striking consequence is a substantial and
immediate drop in the amount of dissolved oxygen in the water. This happens because organic matter
stimulates decomposers especially bacteria which break down suspended solids in the sewage. As they
respire, the decomposers use up dissolved oxygen (O2) and the Biological Oxygen Demand (BOD) reduces.
The flora and fauna of the rivers experience change and reduction in number due to death by suffocation
(Tudge, 1991)
Water pollution is generally induced by humans. It results from actions of humans carried on to better
self. These could be treated under the various activities that man engages in, that lead to pollution. The
growth of human population, industrial and agricultural practices is the major causes of pollution (Eguabori,
1998). Water pollution becomes worse as a result of overcrowding in urban areas. Agricultural, domestic and
industrial wastes are the major pollutants of agnatic habitats. Sewage is the biggest pollutant of fresh water
when discharged into them. Sewage is the waterborne waster of society and the discharge of untreated
sewage into a river is very enormous and unhealthy. The striking consequence is a substantial and
immediate drop in the amount of dissolved oxygen in the water. This happens because organic matter
stimulates decomposers especially bacteria which break down suspended solids in the sewage. As they
respire, the decomposers use up dissolved oxygen (O2) and the Biological Oxygen Demand (BOD) reduces.
The flora and fauna of the rivers experience change and reduction in number due to death by suffocation
(Tudge, 1991)
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