Journal Title
Title of Journal: Environ Monit Assess
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Abbravation: Environmental Monitoring and Assessment
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Publisher
Springer Netherlands
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Authors: M O Jaji O Bamgbose O O Odukoya T A Arowolo
Publish Date: 2007/03/08
Volume: 133, Issue: 1-3, Pages: 473-482
Abstract
The quality of Ogun river in SouthWest Nigeria was studied by a field survey for a period of 1 year covering dry season and rainy season Water samples were collected from thirteen sites and analysed for physicochemical and bacteriological parameters as well as heavy metals using standard methods Generally the values obtained for turbidity phosphate oil and grease iron and faecal coliform from all the sites in both seasons were above the maximum acceptable limit set by the World Health Organization WHO for drinking water Also the manganese content from all the sites in the dry season lead concentrations from three sites in the dry season and cadmium concentrations from some sites in both seasons were above the WHO limit The values obtained for total dissolved solids dissolved oxygen and chloride at site M in the dry season and nitrate at site J in the rainy season were also above the WHO limit Pollution of Ogun river water along its course is evidenced by the high concentrations of pollution indicators nutrients and trace metals above the acceptable limit This poses a health risk to several rural communities who rely on the river primarily as their source of domestic water The study showed a need for continuous pollution monitoring programme of surface waters in Nigeria
Keywords:
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