Environmental problems caused by groundwater contaminated with radionuclides and chemical toxic substances

Groundwater is one of the sources of nutrients for rivers. They are more protected from contamination than surface waters, but during infiltration in mining areas, factories, industries, landfills, and mega cities, pollutants actively penetrate aquifers. Contamination of groundwater causes deterioration of its composition and properties, which limits or perverts its use (for domestic, drinking, cultural, and other purposes). Contamination of groundwater occurs under the influence of two processes: natural and man-made. The scientific results presented in the article do not purport to be original but are a summary of the results given in the cited articles.