This chapter entitled The Content of Macronutrients and Micronutrients in Selected Natural Healing Mineral Water Sources - Beam Charts (Obsah makronutrientů a mikronutrientů ve vybraných přírodních léčivých zdrojích minerálních vod - paprskové grafy) in the book Natural Healing Sources - Mineral Water (Přírodní léčivé zdroje - minerální vody) deals with the chemical composition of natural healing mineral water sources. By means of well-arranged graphs, the percentage of the main elements for cations and anions and the concentrations of trace elements that may have a significant effect in the therapeutic use are given.
Furthermore, the chapter deals with average, maximum and minimum percentages of main cations and anions and concentrations of selected trace elements presented in graphs.