<abstract xmlns="http://www.w3.org/1999/xhtml">This paper is a contribution to quantification of bio-leached arsenic and antimony from mining waste collected from impoundment in Slovinky (Slovakia). Autochtonous fungal strain <italic>Aspergillus niger</italic> was used in all bioleaching experiments. The contents of arsenic and antimony in two different samples from the impoundment were 294.7 and 328.2 mg.kg−1 As and 225.3 and 285.7 mg.kg−1 Sb, respectively. After 21-day cultivation of <italic>Aspergillus niger</italic> on such contaminated substrates, this strain was capable to bioleach, bioaccumulate and biovolatilize both toxic elements.</abstract>

Department of Environmental Ecology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic

Department of Soil Science, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic

Bioleaching of Arsenic and Antimony from Mining Waste

<abstract xmlns="http://www.w3.org/1999/xhtml">Purpose of this paper is to draft shot information about framework for ecological risk assessment compile according Guidelines and short description of phases from which this method consists. During description of particular procedures, the meaning of used terms is introduced and explained. The framework for risk assessment is presented as a useful tool for risk management and selection of available cleanup and remedy technologies, and costs of alternative actions.</abstract>

Ecological Risk Assessment Framework

<abstract xmlns="http://www.w3.org/1999/xhtml">In this study we aimed to analyse the structure and diversity of overall bacterial community and its resistance determinants from nickel-contaminated soil in Slovakia by both, cultivation-dependent and independent approaches. The phylogeny was reconstructed using partial sequences of 16S rRNA (16S rDNA) and heavy-metal resistance genes from separated isolates and bacterial clones. A total of 518 bacterial sequences obtained from both, isolates and clones, represented 266 species belonging to 8 bacterial phyla: Acidobacteria, Actinobacteria, Bacteroidetes, Cyanobacteria, Firmicutes, Gemmatimonadetes, Proteobacteria (α-, β- and γ-classes), Verrucomicrobia, and one yet unclassified group. In addition, among isolates and clones, 49 different <italic>ncc</italic>A-like genes were found in the final output. Majority of them were assigned to a system of transmembrane metal pumps. Our results demonstrate the fact that the nickel-contaminated soil is able to present very specific heavy-metal resistant bacterial community which can be used in different bioremediation processes.</abstract>

Laboratory of Phylogenomic Ecology, Institute of Molecular Biology of the Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovak Republic

Division of Biochemistry, Department of Chemistry, BOKU – University of Natural Resources and Life Sciences, Vienna,

Structure Analysis and Diversity of Bacterial Community and their Resistance Determinants in a Nickel-Contaminated Soil in Southwest Slovakia

<abstract xmlns="http://www.w3.org/1999/xhtml">The concentrations of potentially toxic metals (As, Cd, Cu, Hg, Pb, Zn and Fe) and the values of magnetic susceptibility in surface soils were measured along NW-SE gradient in Bratislava city (rural – urban – rural soils). The results indicate that both the contents of potentially toxic metals (PTMs) and the values of magnetic susceptibility decrease with increasing distance from the city centre in both directions. Urban soils are enriched mainly in Cu, Hg, Pb and Zn. Their elevated concentrations in soils within the city are due to accumulation from anthropogenic activities. There was a statistically significant and positive correlation between the mean values of Tomlinson pollution load index (PLI) and the mean values of magnetic susceptibility in soil samples. This correlation shows that the monitoring of magnetic properties of soils can be used as a rapid and non-destructive tool for the effective determination of environmental pollution in urbanized regions affected by anthropogenic activities.</abstract>

Contents of Potentially Toxic Metals and Magnetic Susceptibility of Soils Along a Rural – Urban – Rural Gradient in Bratislava City (Slovakia)

<abstract xmlns="http://www.w3.org/1999/xhtml">Exotic species introduction has recently increased European insect diversity in accordance with global climate change and international biological commodity trade, often with serious environmental and economic consequences for natural ecosystems as well as urban and farmland area. This short communication deals with the first official faunistic record of the gladiolus thrips <italic>Thrips simplex</italic> (<xref ref-type="bibr" rid="j_aeuc-2016-0005_ref_015_w2aab2b8b6b1b7b1ab1ac15Aa">Morison, 1930</xref>) (Thysanoptera, Thripidae) in Slovakia.</abstract>

On the Occurrence of the Introduced Pest <italic>Thrips simplex</italic> (<xref ref-type="bibr" rid="j_aeuc-2016-0005_ref_015_w2aab2b8b6b1b7b1ab1ac15Aa">Morison 1930</xref>) (Thysanoptera: Thripidae) in Slovakia

<abstract xmlns="http://www.w3.org/1999/xhtml">Presented study evaluates effects of various Sb(III) concentrations on tomato plants (<italic>Solanum lycopersicum</italic>) cultivated hydroponically. Visual symptoms of antimony toxicity were observed only at two highest applied concentrations (50 and 100 mg/L). Dry weight of aboveground parts decreased significantly in variants treated with 25, 50 and 100 mg/L Sb(III), by ~12, 35 and 65 %, respectively, in comparison to the control. Statistically significant decrease of chlorophyll a and b was observed only after application of two highest studied concentrations 50 and 100 mg/L Sb(III). On the other hand concentration of total carotenoids in leaves rose with increasing external Sb(III) concentration. High concentrations (50 and 100 mg/L) of Sb(III) in nutrient solution caused that protein content in leaves dropped by ~20 and 39% relative to control. Accumulation of antimony in roots was about 5- (10 mg/L) to 27-times (25 mg/L) greater than that in shoots. The highest BAF factor value determined for shoots was ~55 at 10 mg/L Sb(III) and for roots it was ~821 at 50 mg/L Sb(III). Translocation factor values were in whole studied concentration range 5 – 100 mg/L Sb(III) &lt; 1. The most effective translocation of antimony from roots to shoots was observes for variants treated with 10 mg/L of Sb(III).</abstract>

Response of Tomato Plants (<italic>Solanum lycopersicum</italic>) to Stress Induced by Sb(III)

AHEAD OF PRINT

Volume 24 (2016): Issue 2 (December 2016)

Volume 24 (2016): Issue 1 (March 2016)

Acta Environmentalica Universitatis Comenianae

The scientific journal Acta Environmentalica Universitatis Comenianae (Bratislava) aimed at advancing conceptual, scientific, and applied understandings of environment. Journal is issued twice a year, publishes original scientific works within the area of both basic and applied scientific research. It covers environment as integrative natural, social, ecological and human systems with variable spatial and temporal dimensions. The journal is based on the premise that environmental sciences include basic and applied research of all components of the environment. Environmental sciences bring new knowledge from huge scale of classic fields (landscape ecology, ecology, environmental planning and management, nature protection, microbiology, ecotoxicology, zoology, botany, and others) and also from cross-disciplinary fields.   Rejection Rate   17%   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Acta Environmentalica Universitatis Comenianae

Volume 24 (2016): Issue 1 (March 2016)

Bioleaching of Arsenic and Antimony from Mining Waste

Ecological Risk Assessment Framework

Structure Analysis and Diversity of Bacterial Community and their Resistance Determinants in a Nickel-Contaminated Soil in Southwest Slovakia

Contents of Potentially Toxic Metals and Magnetic Susceptibility of Soils Along a Rural – Urban – Rural Gradient in Bratislava City (Slovakia)

On the Occurrence of the Introduced Pest Thrips simplex (Morison 1930) (Thysanoptera: Thripidae) in Slovakia

Response of Tomato Plants (Solanum lycopersicum) to Stress Induced by Sb(III)

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