Usman Abdullahi UsmanIsmail YusofMuggundha RaoovYatimah AliasJonathan HodgkinsonNurzaidi AbdullahNur Hayati Hussin2024-05-202024-05-202021Usman, U. A., Yusoff, I., Raoov, M., Alias, Y., Hodgkinson, J., Abdullah, N., & Hussin, N. H. (2021). Natural sources of iron and manganese in groundwater of the lower Kelantan River Basin, North-eastern coast of Peninsula Malaysia: water quality assessment and an adsorption-based method for remediation. Environmental Earth Sciences, 80(12), 425.https://repoemc.ukm.my/handle/123456789/1399Shallow groundwater resources in the lower Kelantan River Basin show anomalously high concentrations of iron and manganese. In some cases, other transition metals and metalloids such as arsenic are also present at elevated levels. Coupled mineral stability and aqueous geochemical models were used to determine the possible sources of iron and manganese in the groundwater.enJournal