The total concentration of a heavy metal in soil provides limited information about its environmental behaviour, since mobility and potential bioavailability depend strongly on the geochemical phase with which the metal is associated. This study investigated the fractionation, st...
Open access
Research Article10.9734/ajacr/2026/v17i3419
Heavy-metal contamination in oil-producing environments may create human-health concerns through ingestion, inhalation and dermal exposure. This study reassessed non-carcinogenic and carcinogenic risks associated with Ni, Cr, Cu, Co, Pb, Cd, Fe, Mn, As and Zn in soil and water fr...
Open access
Research Article10.9734/ajopacs/2026/v14i3341
Domestic water supplies can contain chemical contaminants and heavy metals that may have subtle and not readily apparent health implications. This study aimed to determine the levels of chemicals and heavy metals detected in domestic water sources in Buuri-East Sub-County, Meru C...
Open access
Research Article10.9734/ajarr/2026/v20i91449
Artisanal and small-scale gold mining (ASGM) can release potentially toxic metals into surrounding soils and vegetation, creating possible pathways of exposure for communities living and farming in mining-impacted areas. This study investigated seasonal variation in heavy-metal a...
Open access
Research Article10.9734/ajacr/2026/v17i3418
Automobile mechanic activities can introduce potentially toxic metals into surrounding soils through the disposal of spent engine oil, metallic scraps, batteries and other vehicle-related wastes. This study assessed heavy metal contamination, ecological risk and potential human-h...
Open access
Research Article10.9734/ajopacs/2026/v14i3339
Phytochelatins are glutathione-derived peptides involved in heavy-metal chelation and sequestration in plants. This study aimed to molecularly identify the phytochelatin synthase 1 (PCS1) gene in Eichhornia crassipes collected from the heavy-metal-contaminated Panteka stream in K...
Open access
Research Article10.9734/ajbgmb/2026/v18i8562
Mbailaou N. Goussou, Djimadoum Ndigangar Teadoum, Tchoroun Massang Digué, Soledé Kidjakebo & Madjitoloum Betoloum Salomon·Chemical Science International Journal·2026
Sediments are a major sink and potential secondary source of potentially toxic metals in freshwater ecosystems, and their environmental risk depends not only on total metal concentrations but also on chemical speciation and mobility. During this study, the pH ranged from 5.99±0,0...
Open access
Research Article10.9734/CSJI/2026/v35i51062
Groundwater is the principal source of water for domestic purposes in many parts of Eket Metropolis, Akwa Ibom State, Nigeria, and its quality is therefore relevant to public health. This study presents a health risk assessment of heavy metals in groundwater used for domestic pur...
Open access
Research Article10.9734/jerr/2026/v28i81980
Fruits form an important part of the human diet as they are rich in fibre and vitamins such as A, B, C, D and K. They can be consumed fresh or whole, in liquid forms such as juices and smoothies/blends, as well as in cooked or baked form. The objective of this study is to assess...
Open access
Research Article10.9734/irjpac/2026/v27i51023
This study assessed the concentrations and geochemical speciation of Pb, Cd, Cr, Ni, and V in dumpsite soils derived from coastal plain sands in Akwa Ibom State, Nigeria. Automechanic, paint-processing, and abattoir dumpsites were investigated in Etinan, Uyo, and Ikot Ekpene, wit...
Open access
Research Article10.9734/jaeri/2026/v27i5793
Garuba Muhammed H., Okpoji Awajiiroijana U., Ajawobu Innocent O., Oji Chihurumnanya O., Obinna Vincent O., Abdulwahab Nazeemdeen A., Jerry Joseph, Onyeyili Ikemefuna N., Ezekwueme Obianuju I. & Otabor Osaretin W.·Asian Journal of Food Research and Nutrition·2026
Background: Street-vended foods constitute an important source of affordable meals in urban centres but may contain chemical contaminants that pose potential public health risks. Aim: This study assessed the levels of chemical contaminants in street-vended foods and evaluated the...
Open access
Research Article10.9734/ajfrn/2026/v5i3429
This study investigated the combined effect of pulverised Costus afer stem and cow dung amendments on contaminants of concern (heavy metals, PAHs, and TPHs) in crude oil-contaminated soil. Non-polluted soil samples were obtained from farmland along Mini Orlu Road, near Ada George...
Open access
Research Article10.9734/ijbcrr/2026/v35i51153
This study evaluated selected heavy-metal concentrations and soil physicochemical properties at agricultural-waste disposal sites in Abak Local Government Area, Akwa Ibom State, Nigeria. Soil samples were obtained from sites affected by piggery manure, poultry manure, cassava mil...
Open access
Research Article10.9734/jeai/2026/v48i94439
Groundwater resources in gully erosion-prone areas are increasingly threatened by contaminant infiltration due to the removal of protective overburden and exposure of aquifer systems. This study assessed aquifer protective capacity, groundwater vulnerability, and heavy metal poll...
Open access
Research Article10.9734/ajoger/2026/v9i3276
This study evaluated the distribution and ecological implications of iron (Fe), zinc (Zn), lead (Pb), chromium (Cr), manganese (Mn) and cadmium (Cd) in termite mound soils and adjacent control soils across nine communities in Bogoro, Bauchi and Katagum Local Government Areas of B...
Open access
Research Article10.9734/sarjnp/2026/v9i2262