1. Edwards NT (1983) Polycyclic aromatic hydrocarbons (PAHs) in the terrestrial environment—a review. Environ Qual 12:427–441
2. Hygienic norms “Maximum permissible concentrations (MPC) of chemical substances in water of water resources of household-drinking and cultural-domestic purposes” in GN 2.1.5.1315-03. Moscow (2003)
3. IMGRE (1990) MR No 5174-90 Methodical recommendations on assessment of atmospheric air pollution of heavy metals on the base of their concentration in the snow cover and soils in inhabited localities. In: Revich BA, Saet YE, Smirnova RS (eds) (Appr 15 May 1990. No 5174-90), Мoskow
4. Kulkova MA, Lebedev SV, Nesterov EM, Davydochkina AV (2014) Radiocarbon and tritium in environment water system of St. Petersburg region. J Humanit Sci 165:93–98 (Izvestia: Herzen University)
5. Lebedev SV, Agafonova EK (2017) Ecogeochemical estimation of environmental pollution by monitoring data of heavy metals contamination in soil and snow cover (at the example of Vasileostrovsky district of Saint-Petersburg). Vestnik SPbSU. Earth Sci 62(4):357–369