Transfer of natural radionuclides from soil to plants in North Western Parts of Dhaka

Gaffar S., . and Ferdous M. J., . and Begum A., . and Ullah S. M., . Transfer of natural radionuclides from soil to plants in North Western Parts of Dhaka. pp. 61-74. ISSN 1394-7990

The radioactivity of environmental samples from sites and suspected of contamination must be analyzed before free access is given to the public. Towards this end plant and corresponding soil samples were collected from two different locations of North- western parts of Dhaka (Savar and Manikganj) and the activity concentrations of natural radionuclides �Ra (�U-chain) �Ra (Th-chain) and non-chained �´�K were measured using gamma ray spectrometry. Soils of Savar contained more radioactive �´�K than Manikganj whereas soils of Manikganj contained more �Ra and �Ra than Savar. The influence of certain soil properties on the activity concentrations and transfer factors (TF) of natural radionuclides were investigated by correlating the observed data with those of soil properties. The activity concentrations of �´�K were much higher than those of �Ra and �Ra in plants for both locations due to higher uptake from soils. The transfer factors for �Ra �Ra and �´�K were found to range from 0.082 to 0.926 0.153 to 0.563 and 1.274 to 3.741 at Savar and 0.087 to 0.455 0.061 to 0.806 and 0.738 to 1.949 at Manikganj respectively. The soil to plant transfer factors for �´�K was found to be much higher in plants which might be due to the essentiality of this element in plants. Our study showed that activity concentrations of these radionuclides in plants and their plant transfer factors seem to depend on the activity concentrations of the same radionuclides in soil.

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Abstract

The radioactivity of environmental samples from sites and suspected of contamination must be analyzed before free access is given to the public. Towards this end plant and corresponding soil samples were collected from two different locations of North- western parts of Dhaka (Savar and Manikganj) and the activity concentrations of natural radionuclides �Ra (�U-chain) �Ra (Th-chain) and non-chained �´�K were measured using gamma ray spectrometry. Soils of Savar contained more radioactive �´�K than Manikganj whereas soils of Manikganj contained more �Ra and �Ra than Savar. The influence of certain soil properties on the activity concentrations and transfer factors (TF) of natural radionuclides were investigated by correlating the observed data with those of soil properties. The activity concentrations of �´�K were much higher than those of �Ra and �Ra in plants for both locations due to higher uptake from soils. The transfer factors for �Ra �Ra and �´�K were found to range from 0.082 to 0.926 0.153 to 0.563 and 1.274 to 3.741 at Savar and 0.087 to 0.455 0.061 to 0.806 and 0.738 to 1.949 at Manikganj respectively. The soil to plant transfer factors for �´�K was found to be much higher in plants which might be due to the essentiality of this element in plants. Our study showed that activity concentrations of these radionuclides in plants and their plant transfer factors seem to depend on the activity concentrations of the same radionuclides in soil.

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Item Type:	Article
AGROVOC Term:	Radioactive nuclides
AGROVOC Term:	Radioisotopes
AGROVOC Term:	Amaranthus
AGROVOC Term:	Colocasia esculenta
AGROVOC Term:	Momordica charantia
AGROVOC Term:	Ipomoea aquatica
AGROVOC Term:	Trichosanthes anguina
AGROVOC Term:	Corchorus capsularis
AGROVOC Term:	Cucurbita maxima
AGROVOC Term:	Benincasa hispida
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8019

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