Research Topic: cadmium

Dosage of Sulfidized Nano Zero-Valent Iron, Soil Moisture and pH Influences on Fraction of Arsenic and Cadmium in Contaminated Paddy Soil

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This study examines using tiny iron particles coated with sulfur to clean rice paddy soils contaminated with arsenic and cadmium. The researchers tested different amounts of this material, soil moisture levels, and soil acidity to find the best conditions for trapping these harmful metals in the soil so rice plants cannot absorb them. They found that using a moderate amount of the material works best and that keeping the soil wet helps prevent the metals from becoming available to plants.

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Heavy Metal-Contaminated Soils and Gastric Cancer Risk: Molecular Insights and the Relevance of a One Health Perspective

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Heavy metals like cadmium, arsenic, and lead contaminate agricultural soils and accumulate in crops such as rice and vegetables, which people consume as part of their daily diet. These metals damage stomach cell DNA and trigger inflammation, increasing cancer risk, especially when combined with bacterial infections like H. pylori. A comprehensive approach monitoring soil quality, crop safety, and human health together can help prevent this disease and protect communities from contamination.

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The effect of calcium on the removal of Cd2+ in the formation of biogenic secondary iron minerals

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Acid mine drainage from mining operations contains toxic cadmium that pollutes water supplies. This research shows that naturally occurring bacteria (Acidithiobacillus ferrooxidans) can help remove cadmium by forming iron minerals. Adding calcium and potassium ions together significantly improves this process, with cadmium being trapped in mineral precipitates rather than just adsorbed to surfaces. This biological approach offers a practical and sustainable method for treating contaminated mining water.

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Soil health alterations via compost additions to natural and remediated heavy metal-contaminated mineland soils

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Abandoned mining sites in Missouri left contaminated soils that couldn’t support plant growth. Researchers tested whether adding compost could restore these soils to health comparable to natural prairie. They found that applying 180 tons of compost per hectare successfully restored soil quality and plant growth while keeping heavy metal levels safe for livestock, making it an effective and affordable solution for healing mining-damaged lands.

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Cadmium and Lead Tolerance of Filamentous Fungi Isolated from Contaminated Mining Soils

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Researchers isolated six types of fungi from mining-contaminated soil in Mexico that can survive in extremely toxic environments with high levels of lead and cadmium. These fungi have developed special strategies to handle these dangerous metals, with one species, Paecilomyces lilacinus, showing exceptional ability to tolerate both metals simultaneously. These findings suggest these fungi could be used to clean up contaminated soils in mining regions, offering hope for environmental remediation efforts.

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