Total Content and Mobile Forms of Halogens (Fluorine, Bromine, and Iodine) in Soils of Tuva

Abstract

The study of the chemical composition of soils and their ecological assessment is of great importance both from scientific and practical points of view. Halogens play a significant role in the life of living organisms. They, like other macro- and microelements, participate in the formation of the food chain: atmosphere–soil–natural waters–plants–animals–people. When evaluating the biogeochemical significance of one or another halogen, it is important to know not only its total content but also the concentration of its mobile forms capable of migration and participation in the dynamic equilibrium between the solid phase of the soil and the soil solution. This is because plants are supplied with nutrients due to the mobile forms of various elements. At the present stage, the study of halogens is insufficient, fluorine is among the most studied, iodine is the least studied, and bromine is very poorly studied.