摘要: Abstract：The results of hydrogeochemical researches show that natural waters of Kashin-Beck disease areas in Transbaikalia are remarkable for high concentration of phosphorus (up to 3.5 mg/L), manganese, silicon, lead as well as some additional geochemical features. Based on hydrogeochemical data, the disease may have relations to multi-factors with biogeochemical nature. The further study on genesis of KBD needs more new reliable data about environment geochemistry.