Mercury contamination from historical mining territory at Malachov Hg-deposit (Central Slovakia)

• Published in: Environmental science and pollution research international 2016-02, Vol.23 (3), p.2914-2927
• Main Authors: Dadová, Jana, Andráš, Peter, Kupka, Jiří, Krnáč, Jozef, Andráš, Peter, Jr, Hroncová, Emília, Midula, Pavol
• Format: Article
• Language: English
• Subjects: Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Contamination; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental impact; Environmental Monitoring; Groundwater; Groundwater - analysis; Mercury; Mercury - analysis; Mineralization; Mining; Mining industry; Research Article; Sediments; Slovakia; soil; Soil contaminants; Soil contamination; Soil Pollutants - analysis; soil pollution; Speciation; Spectrum analysis; Studies; Surface water; Surface-groundwater relations; Waste Water Technology; Water Management; Water Pollutants, Chemical - analysis; Water pollution; Water Pollution Control; weathering
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-015-5527-y

Environmental contamination caused by mercury is a serious problem worldwide. The study was conducted in order to identify Hg contamination in soil, technosoil from dumps, groundwater, and surface water in the surroundings of the abandoned Hg deposit of Malachov in Central Slovakia. Soil from the Malachovský brook valley was classified as cambi-soil (rendzina). The highest Hg concentrations (44.24 mg kg⁻¹) were described in the soil from the mining area at the Veľká Studňa locality. In the groundwater, the maximal Hg content is 0.84 μg L⁻¹, and in the surface water it is 394 μg L⁻¹. The speciation study proved that in most samples, Hg occurs in the form of cinnabarite. The release of Hg into the environment as a consequence of weathering is limited.