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Physicochemical Parameters and Heavy Metal Contamination of Surface Water of Mgbuodahia River, Niger Delta, Nigeria

Neeuweh, J. A., Moslen, M., Green, A. F.

Abstract

This study assessed the physicochemical parameters and heavy metal (Pb, Cd, Cr, Ni, Cu, Zn) concentrations in surface water of Mgbuodahia River, Niger Delta, Nigeria, for six months (May– October 2025) across four stations (ST1–ST4). Physicochemical parameters were measured in situ, heavy metals were quantified by atomic absorption spectrophotometry, and data were evaluated using a General Linear Model ANOVA with Tukey’s pairwise comparison. Dissolved oxygen was low (0.62±0.12 mg/L) and biochemical oxygen demand elevated (8.41±4.20 mg/L), indicating organic pollution. Lead (0.33±0.10 mg/L) and cadmium (0.10±0.06 mg/L) exceeded WHO permissible limits (0.01 and 0.003 mg/L respectively) at every station and month. ANOVA showed significant monthly variation for pH, conductivity, temperature and most heavy metals, while chromium showed no significant station or month effect, suggesting a diffuse rather than point-source origin. Nickel showed a pronounced June peak roughly double every other month's mean, indicating an episodic input event. These concentrations are higher than values reported for several other Niger Delta water bodies, indicating that Mgbuodahia River is affected by lead and cadmium inputs. The study concludes that Mgbuodahia River is impacted by organic and heavy metal pollution and recommends continuous monitoring and regulation of discharge into the river.

Keywords

Physicochemical parameters; heavy metals; surface water; Mgbuodahia River; Niger Delta

References

Ahmed, MK; Baki, MA; Islam, MS (2015). Accumulation and health risk assessment of heavy metals in seafood. Environ. Monit. Assess. 187(10): 1-12. Aigberua, A; Moslen, M (2017). Space and Time Dynamics of Surface Water Quality of an Estuarine Creek in the Niger Delta in Nigeria. Curr. Stud. Comp. Educ. Sci. Technol. 4(1): 141–155. American Public Health Association - APHA (2012). Standard Methods for the Examination of Water and Wastewater, 22nd ed. Washington DC, APHA Publication. Bob-Manuel, FG; Gabriel, UU; Ekweozor, IKE (2015). Heavy metal concentration in aquatic organisms in Niger Delta. Afr. J. Environ. Sci. 9(3): 45-56. Chaoua, S; Boussaa, S; El Gharmali, A; Boumezzough, A (2019). Anthropogenic sources of heavy metals in soil. Environ. Monit. Assess. 191: 96. Daka, ER; Moslen, M; Ekeh, CA; Ekweozor, IKE (2007). Sediment quality status of two creeks in the upper Bonny estuary, Niger Delta, in relation to urban/industrial activities. Bull. Environ. Contam. Toxicol. 78: 151-521. Dan, TK; Ogiri, IA; Umoh, UU (2022). Sediment as a sink of heavy metals. Mar. Environ. Res. 175: 105574. Dixit, R; Wasiullah; Malaviya, D; Pandiyan, K; Singh, UB; Sahu, A; Shukla, R; Singh, BP; Rai, JP; Sharma, PK; Lade, H; Paul, D (2015). Natural and anthropogenic sources of heavy metals. Environ. Rev. 23: 1-10. Hou, W; Zhang, Y; Wang, X; Liu, S (2024). Comprehensive assessment of occurrence, temporal- spatial variations, and ecological risks of heavy metals in Jiaozhou Bay, China. Mar. Pollut. Bull. 198: 115852. Moslen, M; Daka, ER; Ekeh, CA; Ekweozor, IKE (2006). Physicochemical properties of two estuarine creeks in the Niger Delta in relation to urban/industrial activities. Niger Delta Biol. 5(2): 115-122. Moslen, M; Daka, ER (2013). Effects of aggregate extraction on the physico-chemical variables of surface water of Orashi River in the Niger Delta, Nigeria. Proceedings of the International Conference on Oceanography, Calabar, pp. 272–284. Moslen, M; Daka, ER (2014). Attributes of the subtidal macrobenthos of Azuabie Creek in the upper Bonny Estuary, Niger Delta, Nigeria. Res. J. Environ. Earth Sci. 6: 143-155. Moslen, M (2017). Risk assessment and bioconcentration of heavy metals in Mugil cephalus obtained from Azuabie Creek in Port Harcourt, Nigeria. J. Res. Environ. Earth Sci. 3: 1-7. Moslen, M; Daka, ER (2016). Spatio-Temporal Differences of Physico-chemical Variables in Relation to Industrial Effluent Discharges into Ekerekana and Okochiri creeks, Bonny Estuary of the Niger Delta, Nigeria. J. Nig. Environ. Soc. 10(2): 152-167. Moslen, M; Ekweozor, IKE (2017). Water and Sediment Quality of the Ekerekana and Okochiri Creeks – Hydrocarbon and Heavy Metal Perspectives. Toxicol. Dig. 1(2): 76-91. Moslen, M; Aigberua, A (2018). Heavy Metals and Hydrocarbon Contamination of Surface water in Azuabie Creek within Bonny Estuary, Nigeria. J. Appl. Sci. Environ. Manage. 22(7): 1083–1088. IJGEM IJGEM IIARD International Journal of Geography & Environmental Management Obot, IB; Umoren, SA; Gasem, ZM (2016). Heavy metal levels in Niger Delta organisms and ecological risk assessment. Environ. Monit. J. 12: 1-9. Owoh, E; Wokoma, A (2022). Heavy metal contamination in aquatic species and the surrounding environment of the Niger Delta. Niger. J. Environ. Sci. 18: 1-10. Umesi, N; Gabriel, UU; Ekweozor, IKE (2017). Heavy metal contamination in fish and its implications for human health in the Niger Delta. J. Aquat. Sci. 25: 1-9. WHO (2011). Guidelines for Drinking-Water Quality, 4th edn. World Health Organization, Geneva. Wosu, BH; Moslen, M; Miebaka, CA (2022). Comparative studies of physico-chemical parameters and Total Hydrocarbon Content of Choba and Iwofe axis of the New Calabar River in the Niger Delta, Nigeria. Open Access Res. J. Multidiscip. Stud. 3(2): 043-049.