[Characteristics of forms of fluorine in soils and influential factors].

Forms of fluorine in 15 different soils were studied using sequential chemical extraction procedure. The fluoride forms in soils were separated into five fractions: water soluble fluoride (Ws-F), exchangeable fluoride (Ex-F), fluoride bound to Fe/Mn oxides (Fe/Mn-F), bound to organic matter (Or-F), and residual fluoride (Residual-F). The contents of… CONTINUE READING