Development of a geoinformation atlas of the sanitary and chemical state of water sources in the arid region

Abstract

The paper considers the development of a geoinformation atlas of the sanitary and chemical state of water sources in the arid region on the example of the Saratov region. The atlas summarizes the results of sanitary and chemical monitoring of surface and underground water sources in the Saratov region. Graphs of content of priority pollutants excess, as well as non-carcinogenic risk and hazard index for 2015-2021 are summarized in the form of an information map of a water source linked to its geographical coordinates. The atlas file system includes four blocks, each of which summarizes information about the hygienic condition of one of the types of water sources: springs, wells, small rivers, and sampling points on the Volga River. Atlas data can be derived using landscape models that allow to link the spatial position of a water source with the characteristics of its chemical composition, as well as output data in the form of a altitude diagram. The ratio between sanitary and hygienic indicators in dynamics can also be visualized in the form of diagrams. The atlas may be of interest to specialists in the field of preventive medicine and employees of research organizations dealing with environmental hygiene.