Chemical Content of Landfill Neoreliefs in the Territory of the Subcarpathia Forestry District of Ukraine

Abstract

The tourism industry is concentrated within the boundaries of the Subcarpathia Forestry District of Ukraine. These are mostly resort complexes with recreation houses, hotels and restaurants. Since the issue of solid household waste processing has not been resolved in Ukraine, landfills are emerging near recreation facilities. Undoubtedly, such a situation contradicts the improvement processes, because landfills are objects of detonation of dangerous substances and compounds getting into all components of the environment due to geochemical flows. It was established that chemical elements of the toxic group and biogenic elements accumulate. The traces of individual elements were also determined. The Bronytskyi landfill is the most polluted with the following chemical elements: Pb (3.56 - 4.06 mg/kg), Zn (2.84 - 3.67 mg/kg), Gd (0.021 - 0.033 mg/kg), P (457.3 – 609.7 mg/kg), K (9.7 – 14.6 mg/kg), Ca (174.7 – 237.7 mg/kg), Ga (3.58 – 5,98 mg/kg), La (1.09 – 1.24 mg/kg), Y (0.013 – 0.014 mg/kg), Cd (0.15 – 0.176 mg/kg), Sn (0.013 – 0.018 mg/kg ), Nd (0.029 – 0.046 mg/kg), Eu (0.022 – 0.036 mg/kg) and Th (0.05 – 0.078 mg/kg). The site of the Boryslav landfill is most polluted in the western side - Fe (16.06 - 19.72 mg/kg), Cu (0.37 - 0.43 mg/kg), Gd (0.003 mg/kg), Si (43 – 58.2 mg/kg), P (782.4 – 995.5 mg/kg), Ca (88.6 – 104.7 mg/kg), Mn (1.7 – 2.7 mg/kg) , Sc (0.009 mg/kg), Cr (1.069 – 1.255 mg/kg), Y (0.015 – 0.016 mg/kg), Nd (0.016 – 0.018 mg/kg). In the eastern side of the Stryi landfill the presence of the following elements is most evident - Fe (18.98 - 27.97 mg/kg), Ni (0.09 - 0.21 mg/kg), Zn (0.14 - 0.19 mg/ kg), Pb (0.05 - 0.1 mg/kg), Al (1.6 – 2.0 mg/kg), P (718.1 - 652.5 mg/kg), Mn (2.5–3.5 mg/kg), Ga (0.01 mg/kg), La (0.02–0.04 mg/kg), Cr (0.009–0.013 mg/kg), Ge (0.214 – 0.551 mg/ kg), Cd (0.014 - 0.02 mg/kg), Nd (0.017 - 0.037 mg/kg), Th (0.009 - 0.016 mg/kg). Such a detailed chemical analysis for the presented objects of research is carried out for the first time.

Keywords

• heavy metals
• landfill
• phytomelioration
• environmental safety
• neo-relief