A5033017245- Heavy metals in environment
- Mine drainage and remediation techniques
- Mercury impact and mitigation studies
- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- Arsenic contamination and mitigation
- Metal Extraction and Bioleaching
- Clay minerals and soil interactions
- earthquake and tectonic studies
- Heavy Metal Exposure and Toxicity
- Geology and Paleoclimatology Research
- Mineralogy and Gemology Studies
- Geochemistry and Elemental Analysis
- Iron oxide chemistry and applications
- Geological and Geophysical Studies Worldwide
- Layered Double Hydroxides Synthesis and Applications
- Paleontology and Stratigraphy of Fossils
- Calcium Carbonate Crystallization and Inhibition
- Minerals Flotation and Separation Techniques
- Building materials and conservation
- Radioactive element chemistry and processing
- Magnesium Oxide Properties and Applications
- Crystal Structures and Properties
- Toxic Organic Pollutants Impact
- Groundwater and Isotope Geochemistry
Institute of Geosciences and Earth Resources
2016-2025
National Research Council
2020-2024
Consorzio Roma Ricerche
2021
University of Cagliari
2008-2019
Institut des Géosciences de l'Environnement
2018
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
2018
Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari
2007
University of Florence
1979-2001
Abstract Enargite, a copper arsenic sulfide with the formula Cu 3 AsS 4 is of environmental concern due to its potential release toxic species. The oxidation and dissolution enargite are governed by composition chemical state outermost surface layer. Qualitative quantitative analysis can be initially obtained on basis X‐ray photoelectron spectroscopy (XPS) binding energy intensity data. However, more precise determination principal elements (copper, sulfur) in altered layer bulk mineral...
Recent studies demonstrated that synthetic calcite may host considerable amounts of arsenic (As). In this paper, the concentration As in natural was determined using two novel, specifically designed, sequential extraction procedures. addition, oxidation state and its distribution between coexisting Fe-oxyhydroxides unravelled by μXRF elemental mapping K-edge μXAS spectroscopy. Our results conclusively demonstrate can be found up to 2 orders magnitude over normal crustal abundances. Because...
The Mt. Amiata mining district (Southern Tuscany, Italy) is a world class Hg district, with cumulate production of more than 100,000 tonnes Hg, mostly occurring between 1870 and 1980. mineralization at younger 0.3 Ma, directly related to shallow hydrothermal systems similar presentday geothermal fields the region. There likely continuum deposition present day, because emission from power plants on-going. In this sense, deposits some analogies hot-spring type western USA, although an ore...
Euphorbia pithyusa L. was used in a plant growth-promoting assisted field trial experiment. To unravel the microscopic processes at interface, thin slices of E. roots were investigated by micro-X-ray fluorescence mapping. Roots and rhizosphere materials examined X-ray absorption spectroscopy Zn K-edge, diffraction, scanning electron microscopy. Results indicate some features common to all samples. (i) In pithyusa, found exist different phases. (ii) Si Al are mainly concentrated rim epidermis...
The terrestrial environment is an important contributor of microplastics (MPs) to the oceans. Urban streams, strictly interwoven in city network and MPs' source, have a relevant impact on MP budget large rivers and, turn, marine areas. We investigated fluxes (items/day) MPs natural fibers Mugnone Creek, small stream crossing highly urbanized landscape Florence (Italy) ending Arno River (and eventually Tyrrhenian Sea). Measurements were done dry wet seasons for two years (2019-2020);...