Uranium pollution status and speciation analysis in the farmland-rice system around a uranium tailings mine in southeastern China

摘要

The total uranium (U) content and various forms of U content in the farmland-paddy rice system around uranium tailings dam were investigated and analyzed to reveal the actual situation of U pollution and its influencing factors. The results showed that the U content in the study area was not high overall and mainly existed in the form of residual state, so the actual contamination degree of U was low. Soil physicochemical properties had different effects on U content in soil and rice. The research results were of positive significance for guiding the treatment of U pollution in this region.