Physicochemical and Bacteriological Qualities of Otamiri River Water and Sediment in South Eastern Nigeria
The bacteriological, physicochemical and anionic surfactants qualities of Otamiri river water and sediment were analysed, using standard techniques. The bacteriological analyses revealed the presence of Serratia marcescens (SerEW01) (33.33%), Staphylococcus (22.20%), Streptococcus (22.20%), Enterobacter (11.11%), Escherichia coli (11.11%) in Otamiri river water as well as Acinetobacter seifertii (42.10%), Bacillus (15.80%), Escherichia coli (15.80%), Klebsiella (10.53%) and Streptococcus species (5.30%), in the sediment. Some of these bacteria are indicators of fecal contamination of the river water. Iron recorded the highest value among the heavy metals (1.972 mg/l), in the river water while Co was not detected. Also, Pb, Cd, Ni, Hg, electrical conductivity and turbidity recorded values higher than WHO standards for drinking water. In the sediment, Fe and Cd had the highest and least values 19.82 and 0.025 mg/kg respectively. The pH of the river and sediment were 6.42 and 5.40. Similarly, among the anionic surfactants, sodium dodecyl sulfate (SDS) was the highest in both Otamiri river water (0.100 mg/l) and sediment (0.453 mg/kg), while perfluorobutane sulfate was not detected in the river water. These results imply that the quality of Otamiri river water and possibly the sediment are below the WHO recommendations for drinking water. People using the river water for drinking and other domestic activities should therefore purify it adequately to avert possible health hazards.
Okechi Reuben Nwoye,
Chukwura Edna Ifeyinwa,
Physicochemical and Bacteriological Qualities of Otamiri River Water and Sediment in South Eastern Nigeria, Frontiers in Environmental Microbiology.
Vol. 6, No. 2,
2020, pp. 18-26.
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