Majeed Dler S. M. RussiaSaratov State University, 83, Astrakhanskaya Str., Saratov, 410012, Russiadilersalam1989@gmail.com Author's articles Concentration of Mobile Forms of Heavy Metals in Soils in the Territory of Trophimovsk Oil Field (Saratov Region) Organic Matter in the Soils of the City of Volsk (Saratov Region) Mobile Forms of Heavy Metals in the Soils of the Town of Volsk (Saratov Region) Mineral composition and pollutant content in the bed load of watercourses on the territory of the city of Volsk