A5078480556- Mercury impact and mitigation studies
- Heavy metals in environment
- Radioactivity and Radon Measurements
- Geochemistry and Geologic Mapping
- Groundwater and Isotope Geochemistry
- Heavy Metal Exposure and Toxicity
- Geochemistry and Elemental Analysis
- Smart Materials for Construction
- Analytical chemistry methods development
- Isotope Analysis in Ecology
- Radioactive contamination and transfer
- Adsorption and biosorption for pollutant removal
- American Environmental and Regional History
- Mining and Resource Management
- Chromium effects and bioremediation
- Toxic Organic Pollutants Impact
- Atmospheric chemistry and aerosols
- Paleontology and Stratigraphy of Fossils
- Radioactive element chemistry and processing
- Trace Elements in Health
- Geological and Geochemical Analysis
Czech University of Life Sciences Prague
2013-2024
Czech Geological Survey
2014-2021
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...
In highly industrialized, densely populated parts of Central Europe, mobilization legacy Zn pollution from forest ecosystems may negatively affect the quality water resources. To test this hypothesis, we determined 66Zn/64Zn isotope ratios 15 reservoirs and fluxes in an acidified, spruce die-back affected mountain-slope catchment northern Czech Republic. The δ66Zn values precipitation, organic horizon, runoff were statistically indistinguishable. contrast, bedrock orthogneiss mineral soil...
Both soil organic matter and sulfur (S) can reduce or even suppress mercury (Hg) mobility bioavailability in soil. A batch incubation experiment was conducted with a Chernozem Luvisol artificially contaminated by 440 mg·kg −1 Hg showing wide differences their physicochemical properties available nutrients. The individual treatments were (i) digestate from the anaerobic fermentation of biowaste; (ii) fly ash wood chip combustion; (iii) ammonium sulfate, every treatment added same amount S....
The precise characterization of the behavior individual microorganisms in presence increased mercury contents soil is necessary for better elucidation fate environment. In our investigation, resistant bacterial strains isolated from two contaminated soils, represented by Paenibacillus alginolyticus, Burkholderia glathei, sp., and Pseudomonas were used. Two differently soils (0.5 7 mg kg−1 total mercury) chosen. Preliminary analysis showed methylmercury phenylmercury with higher level....
The potential bioavailability of Hg from soil might be estimated by a variety chemical extraction procedures, differing in the agent, its concentration, sample weight, and time extraction. In this study, comparative analysis several methods, commonly used for obtaining mobile potentially mobilizable phase mercury was carried out. Concentrated HNO3, 0.01 mol/L Na2S2O3, 0.05 EDTA 0.11 CH3COOH were as single agents. Moreover, sequential performed. This procedure involved following fractions:...
Interaction between the historical built environment and environmental pollution can result in accumulation of weathering crust on building material surfaces. A subgroup crusts are black crusts, which consist gypsum layers formed by sulfation calcium-rich substrates. These occur more often pronounced polluted environments such as urban settings. As a result, they incorporate particulate matter, polyaromatic hydrocarbons, heavy metals. Black act non-selective passive samplers, accumulating...
The crucial historical milestone, phasing out leaded gasoline, has rapidly affected atmospheric Pb's concentration and isotope composition. Distant Arctic localities, often without significant industrial contamination sources, can be influenced by foreign transport. For instance, Greenland is Eurasian Canadian sources in spring summer, North American autumn winter.Using snow samples, we chose three Arctic/Subarctic localities of Svalbard, Greenland, Iceland to study the Pb stable signals...
The remoteness and low population in the Arctic allow us to study global environmental processes, where analysis of indicators can provide useful information about local distant pollution sources. Fresh snow represents a convenient indicator regional transboundary atmospheric contamination sources, entrapping aerosols particulates like natural autosampler environment. Lead stable isotopes are widely used trace monitor However, behavior Pb within different components is still not thoroughly...