Authors : Chineze Agbanelo; Chibuike Unamba; Jacinta Akalazu

Volume/Issue : Volume 9 - 2024, Issue 10 - October

Google Scholar : https://tinyurl.com/45r7et5s

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DOI : https://doi.org/10.38124/ijisrt/IJISRT24OCT338

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Abstract : Water quality is increasingly deteriorating and has affected lakes, which are important sources of freshwater. Heavy metals are of great concern because they are mostly toxic and resistant to decomposition. Aquatic macrophytes serve as stable biological filters that purify water bodies by accumulating dissolved metals and toxins in their tissues. Given their ability to trap various toxic heavy metals, the macrophyte Nymphaea lotus, which is observed on the surface waters of Oguta Lake, was studied to estimate the concentrations of six heavy metals in the water, sediment, and macrophytes. This was achieved by studying the spatial and temporal distribution of Nymphaea lotus in the lake and analysing the concentrations of heavy metals in the surface water, macrophytes, and sediment samples. Descriptive statistics, exploratory data analysis, and correlation analysis were used to analyse data obtained. Results revealed that the population of Nymphaea lotus declines over time from June to November in all regions. Upstream had the highest concentration of macrophytes (64%), while the downstream area has the lowest (2%). The heavy metal concentrations in the three samples ranges from 0.16 mg/kg to 2.96 mg/kg in sediments and Nymphaea lotus, and from 0.16 mg/L to 2.16 mg/L in water, with lead showing the highest concentration across all sample type. This highlights heavy metal contamination in the lake. The sparsely populated Nymphaea lotus exhibits selective bioaccumulation of lead, mercury, and zinc, while it seems to exclude or inefficiently absorb arsenic and chromium. Correlation analysis suggests a close interdependence between the concentrations of metals in sediments, water, and macrophytes, with sediments playing a key role in both water contamination and macrophyte metal absorption. Corrective and preventive measures should be taken to restore the lake.

References :

1. Ahiarakwem, C. A. (2006). Water quality assessment and geochemical models of Oguta Lake, southeastern Nigeria. PhD Thesis, Federal University of Technology Owerri.
2. Ahiarakwem, C. A., Nwankwor G. I, Onyekuru S. O, Idoko M. A, (2012). An assessment of the physical and environmental aspects of a tropical lake: A case study of the Oguta Lake watershed, Niger Delta Basin, Nigeria. Am. Int. J. Contemp. Res. 2:53-60.
3. Ahiarakwem C. A, Onyekuru S. O, (2011). Comparative assessment of the physicochemical and microbial trends in Njaba River, Niger Delta Basin, Southeastern Nigeria. J. Water Resour. Prot. 3: 686-693. Doi:10.4236/jwarp. 2011.39079
4. Ali, M. and Soltan, M.E. (1999). Heavy metals in aquatic macrophysics, water and hydrosoils from the river Nile, Egypt. J. Uni. Arab. Biol. 9: 99-115.
5. Atawal Andong, F.; Ezenwaji, N.; Melefa, T.; Hinmikaiye, F.; Nnadi, O. & Olufemi, O. (2019). Assessment of the physical and chemical properties of Lake Oguta (Nigeria) in relation to the water quality standard established by the Nigerian Federal Ministry of Water Resources. Advances in Oceanography and Limnology. doi: 10.4081/aiol.2019.8522
6. Dunhabin J. S. and Bowner, K.H. (1992). Potential use of constructed wetlands for treatment of industrial waste waters containing metals. Sci. Total Environ. 111: 151–68.
7. El Ghazali, G. E. B.; El Tohami, M. S., and Elegami, A. A. (1994). Medical macrophytes in the Nile b provinces. Khartoum University press, Sudan: Khartoum, Pp. 76.
8. Emele, Peace, S.A. Odoemelam, and V. Wirnkor (2021). Assessment of selected heavy metals in water and some fish species from Oguta Lake, Imo State, Nigeria. 5. 34-40.
9. Fayed, M.H and Abdel-shafy, H.J (1985) Accumulation of Cu, Zinc, Cd, and Pb by aquatic microphytes. Environmental International, 2: 56-58.
10. Gulati, K.L.; Nagpaul, K. K, Bukhari, S. S. (1979). Uranium, boron, nitrogen, phosphorus, and potassium in leaves of mangroves. Mahasagar—Bull Natl Inst Oceanogr, 12:183-186
11. Jackson, J., Rasmussen J. B. and Kalff, J. 1994. Mass balance analysis of trace metals in two weedbeds. Water Air Soil Pollut. 75: 107-119.
12. Kapoor, D., Singh, M.P., (2021) Heavy metal contamination in water and its sources. In: Heavy Metals in the Environment. Pp. 179-189.
13. Kara, Y. (2005). Bioaccumulation of Cu, Zn, and Ni from the wastewater by treated Nasturtium officinale. Int. J. Environ. Sci. Tech. 2 (1): 63-67.
14. Madu, F.; Okoyeh, L.; Okolo, C.; Chibuzor, S. & Onyebum, T. (2022). Physicochemical and Microbial Assessment of Oguta Lake, Southeastern Nigeria. Volume 7. 2051-2061. 10.5281/zenodo.7554395.
15. Nfor B. N. and Akaegbobi I. M, (2012). Inventory of the quaternary geology and evolution of Oguta Lake, Imo State, Southeastern Nigeria. World. J. Pure App. Sci. 22:56-53.
16. Nwadiaro, C. S. (2018). Fish introduction into lakes: A case study of Oguta Lake, Imo State, Nigeria. Futo Journals 4:67-75.
17. Odigi M. I, Nwadiaro C. S. (1988). Geophysical limnology of Lake Oguta (in Imo State, South-Eastern Nigeria) with notes on its origin. Hydrobiol. Bull. 22:113-126.
18. Odoemelam, S. A, (2005). Bioaccumulation of trace elements in fish from Oguta Lake in Nigeria. Journal of Chemical Society of Nigeria 30: 18-20.
19. Ogunfowokan, A.; Oyekunle, J.; Olutona, G.; Atoyebi, A.O. & Lawal, A. (2013). Speciation Study of Heavy Metals in Water and Sediments from the Asunle River of the Obafemi Awolowo University, Ile-Ife, Nigeria. International Journal of Environmental Protection. 3. 6-16.
20. Okoro B. C, Uzoukwu R. A, Chimezie N. M. (2014). River basins in Imo State for sustainable water resources management. Civ. Environ. Eng. 4:1-8. Doi: 10.4172/2165-784X. 1000134.
21. Okorondu S. I, and Anyadoh-Nwadike S. O, (2015). Bacteriological and physicochemical analysis of Oguta Lake water, Imo State Nigeria. Sc. J. Public Health. 3:14-19. Doi: 10.11648/j.sjph.s.2015030501.13
22. Oyedeji, S.; Fatoba, P.O; Ogunkunle, C.O AND Akanbi G.M. (2013) Water hyacinth and duckweed as indicator of heavy metal pollution in river Asa. Journal of Industrial Pollution Control 29(2):155-162
23. Peralta-Videa, J.R.; Lopez, M. L.; Narayan, M.; Saupe, G. & Gardea-Torresdey, J. (2009). The biochemistry of environmental heavy metal uptake by macrophytes: implications for the food chain. Int. J. Biochem. Cell Biol., 41 (8–9):1665-1677
24. Plank, C. O. (1992). Macrophyte Analysis: Reference Procedures for the Southern Region of the United States. Southern Cooperative Series Bulletin, No. 368. 78 pp.
25. Sahoo, M.M. and Swain, J.B. (2023). Investigation and comparative analysis of the ecological risk of heavy metal contamination in sediment and surface water in east coast estuaries of India. Marine Pollution Bulletin 19
26. Sawidis T; Chettri M. K; Zachariadis G. Stratis, J. A. (1995). Heavy metals in aquatic macrophytes and sediments from water systems in Macedonia, Greece. Ecotoxicol Environ Saf.32(1):73-80. doi: 10.1006/eesa.1995.1087. PMID: 8565880.
27. Shin –chen, L. (1973). Chinese Medicine Herbs, George Town Press, California: San Francisco, 1973.
28. Skinner, M. W. (2005). The Macrophytes database, Version 3.5 (National Macrophyte Data Center, USDA, NRCS, USA: Lousiana, Baton Rouge. Website http://macrophytes.usda.gov.
29. Sonone, S. S; Jadhav, S.; Sankhla, M.S. & Kumar, R. (2020). Water contamination by heavy metals and their toxic effect on aquaculture and human health through the food chain. Lett. Appl. NanoBioSci., 10 (2): 2148-2166.
30. Steven, F. and James, A. D. (1990). A Field Guide to Medicinal Macrophytes (Honghton Mifflin Company, Massachusetts: Boston.
31. Umunnakwe, J.E. & Aharanwa, B. C. (2014). Assessment of water quality and heavy metal levels in fish species in Oguta Lake, Imo State, Nigeria. Journal of Natural Sciences Research, 4: 103-112. 9.
32. Usman, O.A.S. & Abdus-Salam, N. (2011). Phytoremediation of Trace Metals in Shadawanka Stream of Bauchi Metropolis, Nigeria. Univ J Environ Res Technol, 1 (2): 176-181
33. Vajpayee, P., Rai, U.N.; Sinha, S., Tripathi, R.D. & Chandra, P. (1995). Bioremediation of tannery effluent by aquatic macrophytes. Bull. Environ. Contam. Toxicol. 55: 546–553.
34. Vardanyan L. G. Ingole, B. S. (2006) Studies on heavy metal accumulation in aquatic macrophytes from Sevan (Armenia) and Carambolim (India) lake systems. Environ. Int. 32(2): 208-218. doi: 10.1016/j.envint.2005.08.013.
35. Wang, W. & Williams, J. (1988). Screening and biomonitoring of industrial effluents using phytotoxicity tests. Environ. Toxicol. Chem. 7: 645-652
36. Whitton, B. A. & Kelley, M. G. (1995). Use of algae and other macrophytes for monitoring rivers. Australian J. Ecol. 20: 45-56.
37. Zaynab, M.; Al-Yahyai, R.; Ameen, A.; Sharif, Y.; Ali, L.; Fatima, M.; Khan, K.A. & Li, S. (2022). Health and environmental effects of heavy metals J. King Saud Univ.Sci., 34 (1): Article 101653
38. Zhang, L.; Ni, Z.; Li, J.; Shang, B.; Wu, Y.; Lin, J& Huang, X. (2022). Characteristics of nutrients and heavy metals and potential influence of their benthic fluxes in the Pearl River Estuary, South China.Marine Pollution Bulletin, 179: p. 113685
39. Zhang, C.; Zhang, D.; Duan, H.; Zhao, Z.; Zhang, J.; Huang, X.; Ma, B. & Zheng, D. (2023). Combining metal and sulfate isotopes measurements to identify different anthropogenic impacts on dissolved heavy metals levels in river water. Chemosphere, 310: Article 136747