References
Adeyemi, I. A., Olagunju, T. A., & Oluseyi, O. (2017). Heavy metals in Nigerian coastal waters: A case study. Journal of Environmental Science and Health, Part A, 52(3), 234–243. https://doi.org/10.1080/10934529.2017.1286573 Akinola, R. O., Adeyemi, I. A., & Olagunju, T. A. (2020). Health risks of heavy metals in microplastics: A review. Chemosphere, 241, https://doi.org/10.1016/j.chemosphere.2019.125064 Akpan, E. J., & Akpan, A. I. (2018). Assessment of heavy metals contamination in Nigeria’s Niger Delta: A review. Environmental Monitoring and Assessment, 190(4), 1–13. https://doi.org/10.1007/s10661-018-6666-5 Anya, A. O., Ibezim-Ezeani, M. U., & Ihunwo, O. (2017). Hydrogeochemical characteristics and water quality assessment of Woji Creek, Rivers State, Nigeria. Journal of Water Resources and Environmental Engineering, 9(3), 45–54. Brennecke, D., et al. (2016). ‘Interactions between microplastics and heavy metals: Implications for aquatic ecosystems. Marine Pollution Bulletin, 109(1), 177-182. Dibofori-Orji, A. N., Horsfall, M. Jr., & Spiff, A. I. (2019). Seasonal variations in physicochemical properties of surface water in the Bonny/New Calabar River Estuary, Nigeria. Environmental Monitoring and Assessment, 191, 125. Gallo, F., et al. (2018). ‘Marine litter plastics and microplastics and their toxic chemicals components: the need for urgent preventive measures’. Environmental Sciences Europe, 30(1), 13. Gündo?du, S., Çevik, C., Ayat, B., & Karaca, S. (2019). An assessment of heavy metal contamination in microplastics from urbanized coastal sediments. Marine Pollution Bulletin, 145, 282–289. https://doi.org/10.1016/j.marpolbul.2019.05.047 Ibezim-Ezeani, M. U., & Ihunwo, O. (2020). Anthropogenic influences on water quality in estuarine ecosystems: A case study of Woji Creek, Rivers State, Nigeria. Environmental Research and Public Health, 17(12), 3256. Ideriah, T.J., et al. (2012). ‘Heavy metal contamination of sediments from industrial and municipal waste sources in the Niger Delta’. Environmental Monitoring and Assessment, 184(3), 1237-1246. Iyama, W. A., Nwankwoala, H. O., & Amadi, A. N. (2020). Influence of urbanization on groundwater quality: A case study of Obio-Akpor Local Government Area, Rivers State, Nigeria. Journal of Environmental Hydrology, 28(5), 87–102. Kamunda, C., Mathuthu, M., & Madhuku, M. (2018). Health risk assessment of heavy metals in soils from gold mines in South Africa. International Journal of Environmental Research and Public Health, 15(7), 1536. Li, J., Liu, H., Paul-Pont, I., Yin, X., & Wang, W. (2021). Microplastic contamination of aquatic environments: An emerging challenge. Water Research, 190, 116682. Li, Y., Zhang, J., Zhao, Z., Huang, Y., & Yu, K. (2020). Heavy metal contamination and health risk assessment in sediments from the Pearl River Delta, China. Environmental Science and Pollution Research, 27(6), 6791–6805. https://doi.org/10.1007/s11356-019-07382-x Liu, X., Jiang, J., Wang, X., Zhang, J., & Gao, T. (2021). Seasonal variations of heavy metal pollution and health risks in urban river sediments. Chemosphere, 263, 128105. https://doi.org/10.1016/j.chemosphere.2020.128105 Mohsen, M., Wang, Q., Sun, J., & Li, J. (2019). Extraction and identification of microplastics in sediment samples using density flotation and FTIR spectroscopy. Marine Pollution Bulletin, 146, 173–181. Nubi, O.A., et al. (2020). ‘Microplastic contamination in the Niger Delta: Distribution and implications for aquatic ecosystems. Science of the Total Environment, 743, 140790. Ogbeide, O., Ekpo, E. A., & Ebigbo, P. O. (2019). Microplastics and heavy metals contamination in the Niger Delta: Implications for human health. Marine Pollution Bulletin, 142, 308– https://doi.org/10.1016/j.marpolbul.2019.04.026 Rochman, C.M., et al. (2013). ‘Long-term field measurement of sorption of organic contaminants to five types of plastic pellets: implications for plastic marine debris’. Environmental Science & Technology, 47(3), 1646-1654. United States Environmental Protection Agency (USEPA). (1989). Risk assessment guidance for Superfund: Volume I – Human health evaluation manual (Part A) (EPA/540/1-89/002). U.S. Environmental Protection Agency. United States Environmental Protection Agency (USEPA). (1996). Method 3050B: Acid digestion of sediments, sludges, and soils. U.S. Environmental Protection Agency. USEPA (1989). Risk Assessment Guidance for Superfund, Volume I: Human Health Evaluation Manual (Part A). U.S. Environmental Protection Agency. USEPA (2009). Integrated Risk Information System (IRIS). U.S. Environmental Protection Agency. Vedolin, M. C., Teophilo, C. Y. S., Turra, A., & Figueira, R. C. L. (2018). Bioavailability of trace metals in microplastics: Influence of polymer type and physical properties. Environmental Pollution, 234, 132–140. Wang, X., Chen, Y., Zhou, Y., & Luo, X. (2019). Distribution and risk assessment of heavy metals in sediments of urban coastal areas. Environmental Geochemistry and Health, 41(3), 1315– https://doi.org/10.1007/s10653-018-0176-5 Wang, X., Tao, S., Xu, F., & Dawson, R. W. (2005). Characterizing and comparing risks associated with polycyclic aromatic hydrocarbons in ambient air of Tianjin, China. Environmental Research, 99(3), 334–342. Zhang, H., Feng, X., Larssen, T., Qiu, G., & Vogt, R. D. (2020). Seasonal variations of heavy metal concentrations in river sediments and associated risk assessment. Environmental Pollution, 265, 114880. https://doi.org/10.1016/j.envpol.2020.114880
