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
The hydrodynamic radius of poly(ethylene glycol) 8000 (PEG8K) was estimated using an aqueous two-phase equilibrium approach that requires no advanced analytical instrumentation. PEG8K solutions were prepared in phosphate buffer at pH 7.4 over an ionic-strength range of 1.2–2.0 mo...
Open access
Research Article10.9734/ajopacs/2026/v14i3340
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
This study investigated the corrosion-inhibition behaviour of HNP-PhOH for pure aluminium in 1 M H₂SO₄ using gravimetric measurements and density functional theory (DFT). Mass-loss experiments were conducted over 298–338 K at different HNP-PhOH concentrations. The results showed...
Open access
Research Article10.9734/ajopacs/2026/v14i3338
In this article, four electronic-structure, density-of-states, projected-density-of-states and dielectric/optical datasets were studied to identify the microscopic O 2p−Hf 5d origin of the electronic gap in cubic BaHfO3 and evaluate the reliability of the optical post-processing...
Open access
Research Article10.9734/ajopacs/2026/v14i3337
This study investigates the influence of TiO₂ nanoparticles on the structural, thermal, and electrochemical properties of PVdF-HFP: NaI based polymer electrolyte films prepared by solution casting. The films were characterized using X-ray diffraction (XRD), Fourier transform infr...
Open access
Research Article10.9734/ajopacs/2026/v14i3336
Lithium-ion battery degradation is influenced by operating temperature, electrical current, depth of discharge (DoD), and charge–discharge cycling. This study presents a computational framework for identifying operating conditions associated with a reduced value of an empirical b...
Open access
Research Article10.9734/ajopacs/2026/v14i3335
Air-quality research in India has predominantly focused on large metropolitan regions, leaving plateau-based Tier-II cities comparatively underexamined. This study assessed the spatio-temporal variability of air quality across five land-use zones in Ranchi, Jharkhand: industrial,...
Open access
Research Article10.9734/ajopacs/2026/v14i3334
Aim: This study assessed the ecological risk posed by six heavy metals [lead (Pb), zinc (Zn), nickel (Ni), copper (Cu), chromium (Cr), and cadmium (Cd)] in soils and surface waters. Study Design: Soil samples were collected at two depths (0–15 and 15–30 cm) from 12 stations acros...
Open access
Research Article10.9734/ajopacs/2026/v14i3333
Previous organic geochemical studies of the hydrocarbon source potential of the Upper Cretaceous Fika and Gongila shales have mainly used bulk geochemical techniques, whereas the contribution of molecular biomarkers to source-rock characterisation remains relatively limited. Ther...
Open access
Research Article10.9734/ajopacs/2026/v14i3332