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<p>Assessment of metal mobility in soil as one of main factors affecting metal uptake in food crops is a subject of great interest. The downward movement of Cd, Pb, Ni, Cr, Co, Fe, Cu, and Zn in cultivated soil layer and their accumulation in different parts of the <i>Abelmoschus esculentus</i> (L.) Moench, 1794 (okra plant), cultivated in the highly leaching sandy loam soil in Phuoc Dong, Nha Trang, Vietnam was investigated. The metal content in soils and plants was determined using an Inductively Coupled Plasma Optical Emission spectrometer. The measured data were used to quantitatively assess the following: (1) metals runoff from the cultivated soil layer (0–20&#xa0;cm) due to leaching; (2) enrichment of metals in the soil profile at a depth of approximately 20&#xa0;cm; (3) residual metals from additives retained in the soil after the crop season. The metal content in the cultivated soil layer after harvesting was lower than the corresponding values before planting. These values were at the lower limit of ranges reported in other studies and below standard guideline values, even though soil had been continuously explored for many years. Accumulation of the majority of the elements (Cd, Co, Cr, Pb, Fe, and Zn) in the edible parts of the okra most was very low. The Target Hazard Quotient for each metal, as well as the overall Hazard Index for all studied metals were below 1.0, suggesting that average daily consumption of okra fruits does not pose a significant health risk to humans.</p>

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Cu, Cd, Co, Pb, Cr, Fe, Ni, and Zn Leaching from Cultivated Soil Layer and Accumulation in the Okra Planted on Sandy Loam Soil in Phuoc Dong, Nha Trang, Vietnam

  • 期刊论文

  • 发表日期：

    2025年8月2日

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  • Tien Doan Phan Thao,
  • My Trinh Thi Thu,
  • Inga Zinicovscaia,
  • Nikita Yushin,
  • Thinh Pham Duc,
  • Dung Do Van,
  • Nghiem Nguyen Thanh,
  • Toan Dang Ngoc

摘要

Assessment of metal mobility in soil as one of main factors affecting metal uptake in food crops is a subject of great interest. The downward movement of Cd, Pb, Ni, Cr, Co, Fe, Cu, and Zn in cultivated soil layer and their accumulation in different parts of the Abelmoschus esculentus (L.) Moench, 1794 (okra plant), cultivated in the highly leaching sandy loam soil in Phuoc Dong, Nha Trang, Vietnam was investigated. The metal content in soils and plants was determined using an Inductively Coupled Plasma Optical Emission spectrometer. The measured data were used to quantitatively assess the following: (1) metals runoff from the cultivated soil layer (0–20 cm) due to leaching; (2) enrichment of metals in the soil profile at a depth of approximately 20 cm; (3) residual metals from additives retained in the soil after the crop season. The metal content in the cultivated soil layer after harvesting was lower than the corresponding values before planting. These values were at the lower limit of ranges reported in other studies and below standard guideline values, even though soil had been continuously explored for many years. Accumulation of the majority of the elements (Cd, Co, Cr, Pb, Fe, and Zn) in the edible parts of the okra most was very low. The Target Hazard Quotient for each metal, as well as the overall Hazard Index for all studied metals were below 1.0, suggesting that average daily consumption of okra fruits does not pose a significant health risk to humans.