Przemysl Chemiczny, Vol.87, No.5, 569-572, 2008
Effect of selected ion distributions in underground waters in Malopolska province on the simplified forms of their chemism presentation
Data on chem. compn. of underground waters sampled from 346 drilled wells (1950-2004) and collected by Geol. Inst. (Cracow, PL) were used for prepn. histograms of concn. frequencies. The distributions were tested for their agreement with the normal, logarithmic normal or exponential (asymmetric) ones. In the case of normal (Gaussian) distributions (HCO3, SO4, Ca, Mg, K, Cl and Na ions), the arithmetic means (instead of medianas) of their equiv. concs. could be used in the Kurlov formula and Udluft diagram without remarkable errors.