Home – Home – Jornals – Geography and Natural Resources 2020 number 1

Maximum permissible concentrations for chemical elements in soils (MPCs) of Russia, Germany, Canada, the Netherlands and the USA are compared. In Russia, general sanitary, water-transferred and translocation MPCs are created; in Germany, general sanitary and translocation, and in the Netherlands, the USA and Canada, general sanitary. It is found that Russian MPCs for total contents of chemical elements are adequate for Mn and V, American, for Co, Cu, and Pb; Netherlands, for Pb and Zn; Canadian, for Ba, Co, Ni, Pb, V, and Zn, and German, for Cr, Ni, and Pb by taking into account the typical levels of elements in the background soils across the world. The methodologically closest Russian and Netherlands standard rates of total contents of chemical elements are compared in this paper with the typical levels for background Retisols gleic, Phaeozems, and Chernozems in the center of Western Siberia. It is established that use of the Netherlnds MPCs for the soils under study gives fewer cases of false Pb pollution, but in all the soils under consideration the Netherlands MPCs for Ba is exceeded. False pollution by total Zn is observed in the top-soil; by Cr, Cu and V, in subsoil horizons of Retisols gleic as well as by Cr, Ni and V, in most samples of Phaeozems and Chernozems. It is concluded that for the soils under consideration the utilization of Rus sian MPCs gives fewer cases of false pollution by V. But in the background Retisols gleic, Russian MPCs for Mn and Pb ac cumulated in the biogeochemical barrier in the top-soil horizons are exceeded. Russian MPCs for metal mobile fraction are the most correct for Co, Cr, Cu, Ni and Pb. The MPCs for mobile fraction of biogenic Mn and Zn are underestimated. Background levels (mg/kg in subindex) of total concentration (mobile fraction extracted by acetate-ammonium buffer) are proposed for Ba404-515, Co12-19(0.001-0.23), Cr143-188(0.001-0.72), Cu32-41(0.01-0.72), Mn423-874(0.09-64), Ni30-62(0.003-1.3), Pb18-27(0.003-0.87), V112-170 и Zn55-104(0.004-0.42) in Retisols gleic on Tobol Upland, Phaeozems on Ishym Upland, and Chernozems in the Trans-Ural region.