A5023786237- Heavy metals in environment
- Chromium effects and bioremediation
- Radioactivity and Radon Measurements
- Geochemistry and Elemental Analysis
- Analytical chemistry methods development
- Thallium and Germanium Studies
- Mercury impact and mitigation studies
- Lichen and fungal ecology
- Adsorption and biosorption for pollutant removal
- Geochemistry and Geologic Mapping
- Radioactive element chemistry and processing
- Heavy Metal Exposure and Toxicity
- Air Quality and Health Impacts
- Diamond and Carbon-based Materials Research
- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Mine drainage and remediation techniques
- Groundwater and Isotope Geochemistry
- Orthopaedic implants and arthroplasty
- Geological and Geochemical Analysis
- Atmospheric chemistry and aerosols
- Isotope Analysis in Ecology
- Plant Stress Responses and Tolerance
- Iron oxide chemistry and applications
- Heavy Metals in Plants
Czech University of Life Sciences Prague
2015-2024
Czech Geological Survey
2012-2023
University of Alberta
2023
University of South Bohemia in České Budějovice
2005-2012
A combined modeling and spectroscopic approach is used to describe Cd(II), Cr(VI), Pb(II) adsorption onto nanomaghemite coated quartz. pseudo-second order kinetic model fitted the data well. The sorption capacity of was evaluated using a Langmuir isotherm model, diffuse double layer surface complexation (DLM) developed metal adsorption. Adsorption mechanisms were assessed X-ray photoelectron spectroscopy absorption spectroscopy. occurs mainly via formation inner-sphere complexes, whereas...
Cadmium (Cd) isotopes are known to fractionate during complexation with various environmentally relevant surfaces and ligands. Our results, which were obtained using (i) batch experiments at different Cd concentrations, ionic strengths, pH values, (ii) modeling, (iii) infrared X-ray absorption spectroscopies, highlight the preferential enrichment of light bound humic acid (HA), leaving heavier pool preferentially in solution (Δ114/110CdHA–Cd(aq) −0.15 ± 0.01‰). At high isotope fractionation...
The number of studies using various stable isotope systems for tracing contamination sources and biogeochemical processes is rapidly rising due to the increased availability techniques used analyses. However, in most cases, resulting data are influenced by many occurring within reactive environmental compartments, e.g., soils sediments, such as sorption, precipitation, redox changes, interactions with plants microorganisms, etc. Therefore, becomes challenging it crucial identify quantify...
Industrial sites affected by anthropogenic contamination, both past and present-day, commonly have intricate pollutant patterns, source discrimination can be thus highly challenging. To this goal, paper presents a novel approach combining multivariate statistics environmental forensic techniques. The efficiency of methodology was exemplified in severely polluted estuarine area (Avilés, Spain), where factor analysis clustering were performed to identify sub-areas with distinct geochemical...
Carcinogenic effects of hexavalent chromium in waters are concern many countries worldwide. We explored Cr isotope systematics at 11 sites the Czech Republic and Poland. Geogenic pollution was associated with serpentinite bodies former convergent plate margins, while anthropogenic resulted from electroplating, tanning, chemical industry. Cr(VI) concentration geogenic less than 40 ppb. Anthropogenic contained up to 127,000 ppb Cr(VI). At both sites, where known, source had a low δ53Cr (<1‰)....