Hydrochemical factors and malignant neoplasms of the urinary system organs in residents of the Prilensky zone of Yakutia

Abstract

In the Republic of Sakha (Yakutia), the incidence of malignant neoplasms of the urinary system from 2001 to 2015 increased by 1.9 times. The quality of the surface waters of the Lena River and its basin is affected by the economic activities of mining, energy, utilities, water transport, oil depots, agriculture with direct discharge of wastewater into them, as well as due to the ingress of pollutants into the adjacent settlements. territories. The purpose of the study is to assess the relationship between the incidence of malignant neoplasms of the urinary system organs and hydrochemical factors polluting the aquatic environment in the Prilensky zone of Yakutia. Correlation analysis was performed on the data on the incidence of MNs in the organs of the urinary system of the population (2001-2015) and the data on the chemical composition of water in the Prilensky zone of Yakutia (1979-1985). The results of the analysis indicate that Yakutia belongs to the territories with a rather pronounced contrast in terms of the incidence of cancer of the urinary system. It can be assumed that the territorial variability in the number of people with cancer of the urinary system organs may well be a reflection of the correlation of the incidence rate, both exogenous and endogenous "risk factors". During the analyzed period, strong direct correlations were established between the parameters of the urinary tract organs with the level of chlorides and synthetic surfactants (surfactants). Correlations of average strength with the level of nitrites, magnesium, transparency, color and mineralization of water in the territories of the Lena zone for 1979-1985 were also revealed.