Characterization of Soils in the Almasu Mare Area through the Determination of Lead Concentrations

Abstract

The present study consisted in the determination of lead concentrations in soil samples and sterile material dumped collected from the Almașu Mare mining area. The lead concentration in the samples collected were determined by atomic adsorption spectrometry (AAS). In spite of the fact that all mines from area are nowadays inactive, the results of the chemical analysis showed that the soils in the area are still highly polluted with lead, except at the base of the "Radeș" dump, where the lead concentrations were below the intervention thresholds.

Pb uptake, accumulation, and translocation in plants: Plant physiological, biochemical, and molecular response: A review

“…It involves reducing Pb metallic element through different chemical additives such as zeolite, activated carbon, steel slag, clay, red mud, carbide slag, sand, lime, and cement [ 182 , 183 ]. However, it was also reported that cement and lime were effective in immobilization of Pb in artificially Pb-contaminated soil samples, while clay, activated carbon, sand, and zeolite were not effective in those soil samples [ 184 ]. Ge, Jiang [ 185 ] conducted an experiment to observe the stabilization/solidification of high Pb-contaminated soils using insoluble porous, neutral, and green material (humin) extracted from natural peat soils and found that humin reduced the bioavailability and mobility of Pb metallic ions due to its high adsorbent capacity, [ 185 ].…”