Transfer of 238U and 232th from soils to tea leaves on Luong My farm, Hoa Binh province, Vietnam

This paper studies the soil-to-plant transfer factors of natural occurring radioisotopes (238U and 232Th) on Luong My Tea farm, Tan Thanh district, Luong Son commune, Hoa Binh province. The activity concentrations in leaves, trunk and roots of the tea tree at no harvest period (winter break) were determined.