Once Again about the Structural Approach to the Analysis of Empirical Data

Structural approach to the analysis of sulfur forms concentrations in bottom sediment in three reaches of the Northern Dvina River located near Arkhangelsk and Solombala pulp-and-paper mills (APPM and SPPM, respectively) was used to show that combining all the available data, when searching for relationships between the characteristics, is non-constructive. The correlation between the characteristics of the right and left banks and the delta are shown to be different. The effect of APPM wastewater is shown to disturb the chain of transformations of sulfate and sulfide sulfur forms in bottom sediment at the left bank of the river and enhance the oxidation of reduced sulfur compounds.