Research Keyword: metal speciation

Bioremediation of High-Concentration Heavy Metal-Contaminated Soil by Combined Use of Acidithiobacillus ferrooxidans and Fe3O4–GO Anodes

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Researchers developed a new system to clean soil contaminated with toxic heavy metals like lead, cadmium, and chromium from electronic waste recycling areas. The system combines special bacteria with magnetized graphene-based electrodes that work together to remove up to 89% of zinc and other metals from polluted soil. This approach is more energy-efficient and environmentally friendly than traditional cleaning methods, offering hope for restoring contaminated sites.

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Diet and Blood Concentrations of Essential and Non-Essential Elements among Rural Residents in Arctic Russia

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Indigenous Arctic residents who eat traditional foods like fish and hunted game get important nutrients but may also absorb toxic metals like mercury, arsenic, and lead. This study of Russian Arctic communities found that eating different fish species and hunted goose was linked to higher levels of these metals in the blood. Interestingly, selenium from fish appeared to help protect against mercury toxicity, though the metals still warrant concern.

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