Search results
1 sie 2024 · Here, we present the following key aspects: (i) the factors influencing uranium mineralization, including material sources, transport processes, and precipitation mechanism; (ii) both natural and anthropogenic sources that contribute uranium entry into the soil; (iii) uranium toxicity generated by its radio- and chemo-toxicities; (iv) the toxic ...
5 lip 2021 · Uranium displays a higher mobility in alkaline soils than that in acidic soils, indicating that U is mobilized and released into soil solution with increasing pH (Selvakumar et al., 2018). This effect is attributed to the enhanced oxidation of U(IV) (sparingly soluble) to U(VI) (soluble) under alkaline conditions ( Wang et al., 2018a ).
23 mar 2022 · Increasing uranium (U) content in soils due to anthropogenic U contamination causes accumulation of U in plants, which greatly increases human health risks. This review identified the diverse...
1 sie 2016 · Two sub-sections specifically focus on the influence of Fe oxides on U sorption and the influence of OM on U speciation within sedimentary deposits. A final section then considers multi-component systems, including U, OM and other constituents, and their incorporation into surface complexation models (SCM) and reactive transport models (RTM).
Increasing uranium (U) content in soils due to anthropogenic U contamination causes accumulation of U in plants, which greatly increases human health risks.
26 kwi 2019 · The main factor affecting the uranium transfer from the soil to the plants is the agrochemical properties and humidity of contaminated soils. The type, hydromorphic feature and acidity of the soil medium significantly affect the plant uptake of 238 U from the soil.
21 lut 2018 · We develop a model with which to study the poorly understood mechanisms of uranium (U) uptake by plants. The model is based on equations for transport and reaction of U and acids and bases in the rhizosphere around cylindrical plant roots.
