IIARD International Institute of Academic Research and Development

IIARD INTERNATIONAL JOURNAL OF GEOGRAPHY AND ENVIRONMENTAL MANAGEMENT (IJGEM )

E-ISSN 2504-8821
P-ISSN 2695-1878
VOL. 8 NO. 1 2022

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Comparism of Water Quality Indices of the Upper Segments of Bonny River Estuary, Port Harcourt, Nigeria

Otene, B.B, Alfred-Ockiya, J.F and Idarisit, E.

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Abstract

Water samples were collected for six (6) months between February and July 2019 and analysed following standard method of APHA, for the physicochemical parameters. The data obtained were subjected to analysis of variance (ANOVA) and Duncan Multiple Range Test (DMRT) using SPSS and Microsoft excel packages. The calculation of water quality index (WQI) made use of the nine (9) parameters chosen following the standards recommended by the World Health Organization (WHO), Bureau of Indian Standards (BIU) and Indian Council for Medical Research (ICMR). The results showed high level of significant difference among the physicochemical parameters across the stations with only temperature not significantly different at p<0.05 while only pH, turbidity, TSS, COD and SO4 exhibited seasonality. The obtained WQI was lowest in Tourist beach (211.776) but highest (303.644) in Marine base with the overall mean value of 258.262 with the dry season value (230.350) lower than the wet season value (257.074). By quality grading, the entire water was rated between class D and E (between poor to unsuitable for domestic use or human consumption). It was recommended that adequate measure should be taken towards remediation of the water while awareness campaign is necessary in reducing indiscriminate anthropogenic activities in the area.

keywords:

Comparism, Water Quality Indices, Upper Segments, Bonny River, Port Harcourt

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