Ecological Systems and Devices Annotation << Back Geochemical characteristics and ecological value of rivers surface film Yanin E.P., Akhtyamova G.G. The natural waters of oil-extracting areas testing influence of chisel barns, containing increased mineral oils, chlorides, sodium, sulfates, calcium, connections of nitrogen, some metals (barium, zinc, copper, aluminium) were considered. It was recommended to add sorption materials in soils to decrease in carrying out pollutant from barns during their construction.