Databases of the content of heavy metals in urban soils of Karelia

The results obtained during the research of urban soils of Karelia Republic (Petrozavodsk, Kostomuksha, Kondopoga) are systematized and presented in a database form. It includes detail descriptions of sample areas, acidity and content of heavy metal (Pb, Cu, Zn, Ni, Co, Cr, Mn) in the 10 cm topsoil. The schematic maps based on concentrations of each pollutant and on the integrated pollution index (Zc) are provided as illustrations, it allows to objectively show the ecological state of soils in the studied urban territories. Storage of results in a database form allows to structure the obtained data and also allows to analyze data by using different SQL queries.