Soil-to-plant transfer factors of radium for different types of plants as influenced by clay content, organic matter content and radium partition in the soil
Van Thang Nguyen, Vu Ngoc Ba, Lam Xuan Anh Dao, Huynh Truc Phuong, Nguyen Van Dong, Cong Hao Le
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Abstract
Twelve plant and corresponding soil samples were collected in twelve agricultural fields in Vietnam for analysis. The 226Ra activity concentrations (AC) varied from 24.5 to 43.1 Bq/kg (dry weight) in soil samples and 1.4–13.2 Bq/kg (dry weight) in plant samples. For seven studied plants, the soil-to-plant transfer factors of radium (TF) varied from 0.032 to 0.439 depending on plant types and the physicochemical properties of the soil. Some relationships were found between 226Ra TF and the properties of soil. TF positively correlated with clay content in soil (Pearson correlation coefficient (r) = − 0.63) and organic matter (OM) in soil (r = − 0.60). A negative correlation was found between TF and AC of 226Ra in porewater of soil (r = 0.66).
期刊介绍：
An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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