TY JOUR TI Features of Soil Contamination on the Airport Territory Revealed Through Engineering and Environmental Survey KW Engineering and environmental surveys KW heavy metals KW ecotoxicants KW concentration KW maximum permissible concentration KW natural environment JO Proceedings of Petersburg Transport University AU Suvorova, O.K. AU Solov'eva, V.Y. AU Abu-Hasan, M.S. AU Harlamova, A.V. PY 2023 IS 20 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"