Changes in Chemical Composition of Natural Waters in Response to Technogenic Load (the Case of Tomsk City, Russia)

The article provides the analysis of chemical composition of the ground and surface waters on the left bank of the river Tom’ within Tomsk area. This study is being conducted in context of active development of the area. The results obtained are compared with the analysis data of the earlier periods. It is concluded that the closed lakes have more changes in water chemical composition, which is caused by increasing content of petrochemicals, heavy metals, phosphorus and nitrogen compounds due to growing economical activities near the water bodies.