Probabilistic assessment of water quality by total hardness using gamma distribution

Abstract The nature of the total water hardness distribution in river has been studied. It was found that during year, changes largely depend on seasonal factor, therefore, an analysis indicator separately for each month also made. Empirical functions were from built-in variational series. obtained laws differ normal and lognormal distributions, but are described quite accurately by gamma distribution. put forward hypotheses about distributions tested Kolmogorov’s goodness-of-fit test confirmed. describe probabilities occurrence events which will exceed or not specified values.