Open AccessTransfer of 238U and 232Th from soils to tea leave sin LuongMy farm, HoaBinh province, Viet Nam
Author(s) -
Hoang Huu Duc,
Nguyễn Đức Minh,
Phạm Việt Cường,
Le Toan Anh,
Loat Bui Van,
Somsavath Leuangtakoun
Publication year - 2019
Publication title -
tạp chí khoa học đại học quốc gia hà nội: toán - lý (vnu journal of science: mathematics - physics)
Language(s) - English
Resource type - Journals
eISSN - 2615-9341
pISSN - 2588-1124
DOI - 10.25073/2588-1124/vnumap.4398
Subject(s) - viet nam , forestry , transfer factor , soil water , sowing , environmental science , horticulture , agronomy , botany , biology , geography , soil science , economy , immunology , economics
The soil-to-plant transfer factors of natural uranium isotopes (238U and 232Th) were studied in Luong My tea farm, Tan Thanh district, Luong Son commune, HoaBinh province. The activity concentrations in leaves, trunk and root were determined for the tea tree at no harvest period (winter break). The measurements were carried out using gamma spectroscopy with high puritygermanium detector HPGe. Research results show that the activity of 238U and 232Th is higher in leaves than in trunk and roots.Soil-leaves transfer factor (TF) for238U and 232Th were as follows:TFU238 = 0,52 – 0,87; TFTh-232 = 0,25 – 0,43.