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KMID : 1102020170470030148
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Applied Microscopy
2017 Volume.47 No. 3 p.148 ~ p.156
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Uptake of Some Toxic Elements by Wild Plants in Siwaqa Area/Central Jordan
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Bzour Asma Fayyad
Khoury Hani Nicola
Oran Sawsan Attalah
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Abstract
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The wide distribution of redox-sensitive elements (RSE) as arsenic (As), cadmium (Cd), selenium (Se), and strontium (Sr) in the top soil of Siwaqa area are related to the weathering action of alkaline surface and groundwater on the parent rocks. The bioavailability, distribution, sorption, and ecotoxicity of As, Cd, Se, and Sr, of the wild plants and top soils in the study area were investigated. A total number of 23 surface soil samples and 23 plant samples were collected and analyzed for the most toxic elements. The uptake of elements by plants was dependent on the plant species and the concentration of elements in the soil. For example, Sr was the highest concentration in soil samples and plants, while Se was the lowest concentration in soil samples and pants. For the plants, the results showed that Bellevalia sp. had the highest elements uptake, while Allium rothii had the lowest elements uptake. The results of this work provide a valuable knowledge for understanding the bioavailability of some toxic elements in the soil and plants of Central Jordan. The results are expected to be of great help for the Jordanian Uranium Mining Company during their environmental risk assessments.
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KEYWORD
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Bioavailability, Central Jordan, Trace elements, Uptake, Transfer factor
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