ABSTRACT
The study investigated heavy metal levels in the Bonny River. Water and
sediment samples, collected at four major sites selected along the river course,
were analyzed for heavy metals (Pb, Zn, Ni, Cd, Cu, and As) using standard
methods. The pH in water was higher (7.94) than in sediment and EPA
standards (6.5-7.5) and in water; it was lower than the recommended values for
EPA and WHO. Descriptive statistics and Pearson correlation were used to
analyze data at PAs>Cu>Pb>Cr>Cd>Ni. In sediments, values were low (0.08-023mg/kg for
Pb, 0.22-0.53mg/kg for Zn, 0.01-0.041mg/kg for Ni, 0.022-0.084mg/kg for Cd,
0.095-0.215mg/kg for Cr, 0.023-0.32mg/kg for Cu and 0.03-0.086mg/kg for As
and in relative order of As>Zn>Pb>Cu>Cr>Cd>Ni. Significant positive
correlation at P>0.05 was observed between heavy metals in water and
sediment, Ni & As (+0.925**), Cd & Cr (+0.787*), Ni & Cu (+0.729*), Cu &
As (+0.710*). Heavy metal pollution index for water ahead a maximum value
(0.67) at downstream location and was below the critical index value of 100.
Contamination factor (CF) for sediment revealed that heavy metals shoed low
(CF
Project, T. & Ifeoma, U (2021). ASSESSMENT OF THE DISTRIBUTION OF HEAVY METALS IN BONNY RIVER, NIGERIA. Afribary. Retrieved from https://afribary.com/works/assessment-of-the-distribution-of-heavy-metals-in-bonny-river-nigeria
Project, The MasterMind, and Ugboaja Ifeoma "ASSESSMENT OF THE DISTRIBUTION OF HEAVY METALS IN BONNY RIVER, NIGERIA" Afribary. Afribary, 22 Feb. 2021, https://afribary.com/works/assessment-of-the-distribution-of-heavy-metals-in-bonny-river-nigeria. Accessed 30 Jun. 2022.
Project, The MasterMind, and Ugboaja Ifeoma . "ASSESSMENT OF THE DISTRIBUTION OF HEAVY METALS IN BONNY RIVER, NIGERIA". Afribary, Afribary, 22 Feb. 2021. Web. 30 Jun. 2022. < https://afribary.com/works/assessment-of-the-distribution-of-heavy-metals-in-bonny-river-nigeria >.
Project, The MasterMind and Ifeoma, Ugboaja . "ASSESSMENT OF THE DISTRIBUTION OF HEAVY METALS IN BONNY RIVER, NIGERIA" Afribary (2021). Accessed June 30, 2022. https://afribary.com/works/assessment-of-the-distribution-of-heavy-metals-in-bonny-river-nigeria