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Research Article Open Access

Investigation of Biochemical Oxygen Demand (BOD) in Ntanwoba Creek Using Dilution Method

Abstract

The objective of this research is to determine the Biochemical Oxygen Demand (BOD) level in water samples from Ntanwoba Creek, Port Harcourt, and Rivers State, Nigeria. Water samples were collected from four locations designated as A, B, C and D, for the determination of Biochemical Oxygen Demand (BOD) using the titration method. The BOD values in the water samples from the four sampling points were higher than the WHO limits for the protection of fish and other aquatic life, indicating high pollution of this portion of Ntanwoba Creek. The high BOD values of the analyzed water samples are attributed to runoff of wastewater from agricultural activities and automobile workshops around the study area. For the well-being of aquatic life in the area of study, there should be a continuous monitoring of agricultural and industrial drainage containing organic materials into the creek.

Nimibofa Ayawei, Victoria Bennetta*

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