Gabriela Kalčíková

Gabriela Kalčíková
University of Ljubljana · Faculty of Chemistry and Chemical Technology

PhD
Principal investigator of two national projects (Planterastics and Plasti-C-Wetland) and H2020 project Papillons.

About

40
Publications
7,857
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866
Citations
Introduction
I am very enthusiastic about microplastic (MPs) research and me and my research group is focused on preparation and characterization of environmentally relevant MPs, the fate and behavior of MPs in laboratory constructed wetland, environmental aging, development of biofilm, and evaluation of MPs properties, interactions of MPs with freshwater organisms (especially vascular plants) and on adsorption of pollutants on the MPs surface and their consequential leaching.
Additional affiliations
December 2013 - present
University of Ljubljana
Position
  • Research Assistant
Education
October 2010 - September 2021
University of Ljubljana
Field of study
  • Environmental Protection
October 2007 - September 2009
Brno University of Technology
Field of study
  • Chemistry and Technology of Environmental Protection
October 2004 - September 2007
Brno University of Technology
Field of study
  • Chemistry and Chemical Technology

Publications

Publications (40)
Article
Full-text available
Plastic fragments, weathered into or released in the form of micro- and nanoplastics, are persistent and widespread in the environment, and it is anticipated that they have negative environmental impacts. This necessitates immediate efforts for management strategies throughout the entire plastics lifecycle. This opinion paper was initiated by the E...
Article
Bakelite, the first synthetic plastic, is a rather unexplored material in the field of ecotoxicology, despite its long production and use. The aim of this study was to investigate the ecotoxicity of Bakelite microplastics (before and after leaching) and its leachates on four aquatic organisms: the crustacean Daphnia magna, the plant Lemna minor, th...
Article
Full-text available
The presence of microplastics (MPs) in the environment has raised many concerns, and therefore approaches and technologies to remove them in situ are of high current interest. In this context, we investigated the interactions between polyethylene MPs (fragments with mean size 149 ± 75 μm) and an aquatic floating macrophyte Lemna minor in order to a...
Article
Full-text available
In recent decades, much attention has been paid to microplastic pollution, and research on microplastics has begun to grow exponentially. However, microplastics research still suffers from the lack of standardized protocols and methods for investigation of microplastics under laboratory conditions. Therefore, in this review, we summarize and critic...
Article
In aquatic ecosystems, nanosized titanium dioxide particles (nTiO2) likely interact with natural organic matter (NOM) and may alter the ecotoxicity of co-occurring metals. The magnitude of changes in toxicity may be modulated by the duration of interactions (i.e. aging) between these factors. As those interactions are hardly addressed in literature...
Article
Full-text available
Water-soluble polymers (WSPs) are organic materials that have been used for decades in various applications as part of paints, coatings, adhesives, washing agents, pharmaceuticals, personal care products and cosmetics. However, their ecotoxicity, biodegradability, and overall impact on the environment are still unknown. In this study four polyacryl...
Article
The scientific understanding regarding sources, occurrence, and effects of microplastics in the aquatic environment has advanced rapidly, leaving some meaningful knowledge gaps virtually untouched. One of them is the interactions of microplastics and biofilms, microbial communities ubiquitous in aquatic ecosystems and fundamental for a range of eco...
Article
Full-text available
Current standardized laboratory test protocols use model species that have limitations to accurately assess native species responses to stressors. We developed and tested a novel acute in situ protocol for testing field-collected organisms. We used Asellus aquaticus and NaCl as a reference toxicant to test for the effects of location (laboratory vs...
Article
Full-text available
The aim of this study was to evaluate the antibacterial and antifungal activity, cytotoxicity, leaching, and ecotoxicity of novel flame retardant polyamide 6 (PA6) textile fibers developed by our research group. The textile fibers were produced by the incorporation of flame-retardant bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)...
Article
Full-text available
Microplastics in the environment occur in different sizes and shapes and are made of various polymers. Therefore, they also considerably differ in their properties and ecotoxicity. However, the majority of microplastics research uses pre-made spherical microplastics, which practically do not exist in the environment. Our work focused on a comprehen...
Article
One of the recent trends within the circular economy is the development of materials derived from food processing waste and their utility as an alternative to plastic packaging. In this context, the study aims to evaluate biological causes of deterioration or degradation of chitosan-based films with and without incorporated natural Quercus polyphen...
Article
Research on the interaction of microplastics and aquatic organisms has been mainly focused on the evaluation of various impacts on animals while vascular plants have been so far understudied. In this commentary, we summarized knowledge about interactions of microplastics with aquatic vascular plants and highlighted potential ecological implications...
Article
In the last decade, different bio-materials have been investigated for ability to remove metals from aqueous solution. In this study, waste fungal biomass (WFB) was evaluated as a biosorbent for the accumulation and removal of lead and cadmium ions. The biomass being investigated was obtained after the production of Ganoderma lucidum fruiting bodie...
Article
Microplastics are very complex pollutants; they can be made of many polymer types and exist in various shapes and sizes. When they enter the environment they are affected by biotic and abiotic factors that cause their properties to change. In this context, the aim of our study was to evaluate the extent to which biofouling affects the properties an...
Chapter
Despite the increasing environmental awareness, there is still an enormous amount of plastic waste generated which often ends up in the environment. Slovenia is not an exception, and in the past years, there was a lot of effort to minimize plastic pollution in terrestrial and aquatic environments. Since waste management is closely connected to plas...
Article
Current understanding of how environmental aging of microplastics contributes to their ecotoxicity is low. We investigated whether incubation of microplastics in waters with different organic load and toxic potential alters the toxicity of microplastics to crustacean Daphnia magna, fish embryos Danio rerio and plant Lemna minor. Polyethylene primar...
Article
The capability of ozone to reduce the hazardous impact of environmentally persistent antibiotic tiamulin in term of toxicity reduction and enhancement of biodegradability was investigated. Different ozone doses were applied but ozonation was not effective enough to increase the biodegradability of tiamulin in the aqueous phase. The opposite effect...
Article
Magnéli phase titanium suboxides (Magnéli TiOx) are novel conductive materials with great industrial potential. This is the first comprehensive investigation to provide an extensive dataset for hazard characterisation of Magnéli TiOx using six standardised test organisms and two human cell lines. Three Magnéli TiOx particles and three anatase cryst...
Article
Many paper products are coated with plastic to improve their quality and stability. However, this limits recycling and recovery options and the plastic-coated waste paper is mostly disposed in landfills. Such practices are uneconomical and contrary to sustainable waste management. In this work enzymes of the white rot fungus Dichomitus squalens wer...
Article
Full-text available
The depletion of energy reserves in animals has already been recognized as a useful indicator of environmental pollution with potentially high ecological significance. However, apart from being affected by pollution, energy reserves in organisms also vary depending on natural abiotic and biotic factors. Seasonal and spatial dynamics of energy reser...
Article
Extensive production of nanomaterials of various properties needs to be coupled with rapid toxicity testing in order to provide information about their potential risks to the environment and human health. Miniaturization of toxicity tests may accelerate economical testing of nanomaterials, but is not a common practice. We describe a case study to m...
Article
Microplastics (MP), small plastic particles below 5 mm, have become one of the central concerns of environmental risk assessment. Microplastics are continuously being released into the aquatic environment either directly through consumer products or indirectly through fragmentation of larger plastic materials. The aim of our study was to investigat...
Article
Microplastics in the environment are either a product of the fractionation of larger plastic items or a consequence of the release of microbeads, which are ingredients of cosmetics, through wastewater treatment plant (WWTP) effluents. The aim of this study was to estimate the amount of microbeads that may be released by the latter pathways to surfa...
Article
Studies assessing chromium phytoextration from natural waters rarely consider potential implications of chromium speciation in the presence of ubiquitous humic substances. Therefore, the present study investigated the influence of environmentally relevant concentration of humic acid (TOC = 10 mg L(-1)) on chromium speciation (Cr = 0.15 mg L(-1)) an...
Article
The heterogeneous Fenton oxidation reaction was investigated at two different catalytic supports including the blank alumina plates and alumina plates with thin carbon nanofiber (CNF) layer. Iron (III) oxide was used as a catalyst and propionic acid (PA) was studied as a model organic compound. A carbon nanofiber layer and a thin catalytic layer of...
Article
Leachate from a closed landfill used for co-disposal of municipal and tannery waste was submitted to coagulation treatment, air stripping, adsorption on granular activated carbon, and Fenton oxidation with the aim to reduce toxicity of the leachate. Optimal operational conditions for each process were identified. The performance of the treatment wa...
Article
A common problem of biological treatment of landfill leachates is high toxicity and low biodegradability. Leachates from old landfills do not exhibit high toxicity and if the landfill is still filled by waste, they may contain sufficient amounts of biodegradable organic matter. With the aim of evaluating biotreatability of leachates from old, but a...
Chapter
Landfilling has been for decades the most often used method for waste management. However, the growing awareness of the detrimental environmental effects of current waste processing led to important movement towards sustainable waste management practices in Europe. The concept includes clear hierarchy of waste management, where the main priority of...
Article
The aim of our study was to evaluate biotreatability of mature municipal landfill leachate by using white rot fungus and its extracellular enzymes. Leachates were collected in one active and one closed regional municipal landfill. Both chosen landfills were operating for many years and the leachates generated there were polluted by organic and inor...
Article
BACKGROUND: Landfill leachate is a heavily polluted liquid with important environmental impact. It can be generated in a landfill for a long time. During each phase of a landfill life cycle, landfill leachate with specific composition is produced and its treatment has to be optimized accordingly. Phytoremediation offers many benefits compared with...
Article
Despite the fact that the marine crustacean Artemia salina is extensively used in ecotoxicology, there is still a lack of information about its sensitivity to commonly used chemicals. In the presented study, acute toxicity of 18 commonly used chemicals - including organic solvents, industrial chemicals, metals and inorganic compounds - to A. salina...
Article
Full-text available
The aim of our work was to assess the reliability of the method for the determination of oxygen consumption inhibition by activated sludge for carbonaceous and am-monium oxidation for monitoring nitrification inhibition of landfill leachate. Several types of landfill leachates (fresh, mature and their mixture that actually enters biological treat-m...
Article
Ionic liquids seemed to be primary alternatives to commonly used solvents because of their attractive properties e.g. low volatility, non-flammability, adjustable miscibility, reusability as well as high thermal, chemical and electrochemical stability. However, their solubility in water could lead to water pollution and their high stability results...
Article
The aim of our research was to assess the ecotoxicity and biodegradability of leachates originating from two parts of a municipal landfill before and after biological treatment in the existing treatment plant. Biotests represent important tools for adequate environmental characterization of landfill leachates and could be helpful in reliable assess...
Article
Purpose – The aim of this work is to compare quality of leachates from regional municipal landfill in different seasons (dry, snowy/rainy) during a three-year monitoring period due to the fact that quality of landfill leachate can rapidly change under different conditions. Design/methodology/approach – Raw leachates were sampled prior to biological...
Article
Full-text available
The aim of our study was introduction of phytotoxicity test as a supplement to traditional toxicity and physico-chemical characterization of landfill leachate as well as for assessment of efficiency of different treatment methods. Phytotoxicity tests are relevant tool for assessment of impact of pollutants on the primary producers in ecosystems. Ro...

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Projects

Projects (5)
Project
Plasti-C-Wetland is a new project of Planterastics researchers. The project is focused on fate and behaviour of microplastics in a laboratory constructed wetland (https://planterastics.fkkt.uni-lj.si/plasti-c-wetland/)
Project
https://www.mdpi.com/journal/molecules/special_issues/flame_retard_sustain_world The development of new flame retardant (FR) formulations has become inevitably intertwined with long-term environmental, economic, and social sustainability. The main driving forces in the development and design of new FR systems, their preparation strategies and application approaches are (1) efficiency and performance of flame retardant in specific applications; (2) sustainability of flame retardant, including smoke toxicity, migration/leaching of FR, and its (eco)toxicity profile; and (3) sustainability of FR preparation/application processes, including their environmental and public health impact as well as production cost. This visionary concept has already given rise to the development of novel synthesized as well as bio-based flame-retardant alternatives to banned persistent, bioaccumulative, and toxic FRs. Therefore, this Special Issue aims to broaden scientific knowledge with recent developments on innovative and sustainable inorganic and organic FRs of low or high molecular weight; bio-based FR systems; FR synergistic mixtures; their preparation processes; application in the polymer bulk, composite, film- and fiber-forming polymers, coatings, textile; and performance. We invite the research community to contribute to this Special Issue by submitting original research articles or comprehensive reviews. The topics of interest include but are not limited to the following: Inorganic, organic and inorganic/organic flame retardants Bio-based flame retardants Flame-retardant co-monomers and co-polymers Multi-component flame-retardant systems Multifunctional flame retardants Application of flame retardants Thermal stability Flammability and combustion behavior Flame retardant mechanism Smoke toxicity Migration/leaching (Eco)toxicity
Project
https://planterastics.fkkt.uni-lj.si/ The aim of the project is to assess interactions of various microplastics (MPs) and plants in order to evaluate whether floating plants can accumulate and strongly bind MPs and could potentially be used for phytoremediation of MPs from freshwater ecosystems.