Danica Fazekašová

ORCID: 0000-0001-8976-037X
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Research Areas
  • Heavy metals in environment
  • Coal and Its By-products
  • Botany and Plant Ecology Studies
  • Crop Yield and Soil Fertility
  • Soil Carbon and Nitrogen Dynamics
  • Marine and environmental studies
  • Mine drainage and remediation techniques
  • Soil and Environmental Studies
  • Agricultural Productivity and Crop Improvement
  • Peatlands and Wetlands Ecology
  • Geochemistry and Elemental Analysis
  • Agriculture and Biological Studies
  • Agriculture, Plant Science, Crop Management
  • Diverse Scientific Research in Ukraine
  • Phytase and its Applications
  • Geochemistry and Geologic Mapping
  • Mercury impact and mitigation studies
  • Plant Ecology and Soil Science
  • Aerospace, Electronics, Mathematical Modeling
  • Hungarian Social, Economic and Educational Studies
  • Metal Extraction and Bioleaching
  • Genetic and phenotypic traits in livestock
  • Phosphorus and nutrient management
  • Geological Formations and Processes Exploration
  • Heavy Metals in Plants

University of Prešov
2001-2022

Contamination of soil and water environment by heavy metals in a former mining area their effect on the characteristics were determined. Soil samples collected village Rudňany which is, according to environmental regionalization, classified as an environmentally loaded unhealthy area. 2011 at eight fields situated different distance from pollution source. Total contents (Cu, Pb, Zn, Hg), reaction (pH), organic carbon (Cox), activity urease (URE), acid phosphatase (ACP), alkaline (ALP)...

10.17221/24/2013-swr article EN cc-by-nc Soil and Water Research 2014-03-31

Mining activities have resulted in the existence of dumps, which generally present a perpetual danger moving and transforming toxic elements. The experimental study was carried out Nizna Slana (Slovakia) where main source emission iron-ore mining–processing factory focused on siderite mining. Siderit from is highly ferrous with an increased level Mn content. Among undesirable impurities deposit are mainly As, S, Pb, Zn. According to environmental regionalization Slovak Republic, surveyed...

10.3390/su12062549 article EN Sustainability 2020-03-24

A high content of heavy metals in the soil and plants a magnesite mining area might cause serious damage to environment can be threat health surrounding population. This paper presents results research that focused on analyzing metal dumping grounds factory Jelšava-Lubeník (Slovakia). The analysis (X-ray fluorescence spectrometry, atomic absorption spectrometry), (inductively coupled plasma mass inductively emission pH (1M KCl solution). showed study was slightly acidic strongly alkaline Cr,...

10.3390/su13084508 article EN Sustainability 2021-04-18

Landfills, old and abandoned mines, industrial sites, heaps, sludge ponds other sources of pollution represent environmental threats are characterized as chemical time bombs. This work is focused on the evaluation soil contamination by risk elements using various indices (geoaccumulation index—Igeo, enrichment factor—EF, factor—Cif degree contamination—Cd). These selected agrarian problem areas located in Slovakia, especially air field landfills consisting power plant fly ash, tannery...

10.3390/land10111248 article EN cc-by Land 2021-11-14

There is a need to assess the impact of different farming methods on soil quality and fertility in specific ecoregions. Soil biochemical parameters enzymatic activity appear very useful monitoring pollution management practices can be used as indicators sustainability. chemical properties, biological properties (urease, acid alkaline phosphatase) were investigated at six sites under ecological (no pesticides, organic fertilizers crop rotation) conventional (pesticides mineral fertilizers)...

10.1080/01448765.2014.1002537 article EN Biological Agriculture & Horticulture 2015-01-21

The variations in ground beetles (Coleoptera: Carabidae) assemblages across the three types of farmland habitats, arable land, meadows and woody vegetation were studied relation to cover structure, intensity agrotechnical interventions selected soil properties. Material was pitfall trapped 2010 2011 on twelve sites agricultural landscape Prešov town its near vicinity, Eastern Slovakia. A total 14,763 beetle individuals entrapped. collection resulted into 92 Carabidae species, with following...

10.5513/jcea01/19.1.2022 article EN cc-by-nd Journal of Central European Agriculture 2018-01-01

Abstract This paper is focused on the impacts of alkaline and metal deposition soil vegetation in immission field magnesium factory Jelšava-Lubeník (Slovakia). Soil samples foliage were obtained from area with specific pollutants. The examined one most devastated regions Slovakia. From point view environmental regionalization, it belongs to an environmentally damaged Category 3. total content heavy metals (Pb, Zn, Cr, Mn, Mg) determined by atomic absorption spectrometry X-ray fluorescence...

10.2478/eko-2018-0010 article EN cc-by-nc-nd Ochrana prírody Slovenska/Ekológia 2018-06-01

A field-based study and laboratory tests were undertaken to determine the functional diversity of microorganisms in metal- alkali-contaminated soils Central North-eastern Slovakia where iron ore magnesite have been mined processed for a long time. To improve understanding microorganisms, we examined effects environmental factors on emission field heaps tailings impoundments mines (Central SpiĹĄ) factories (JelĹĄava LubenĂ­k). Biolog® Eco Plates used assess metabolic profiles microbial...

10.17221/37/2018-swr article EN cc-by-nc Soil and Water Research 2018-11-23

Mining activities, ore concentrations, and transport processes generate large amounts of pollutants, including hazardous elements, which are released into the environment. This work presents results experimental research aimed at evaluating environmental risks soil plant contamination in two magnesite mining processing areas Slovak Republic, assesses phytoremediation potential dominant species. Eleven potentially toxic elements were investigated using X-ray fluorescence spectrometry (Cd, Pb,...

10.3390/pr10040720 article EN Processes 2022-04-08

Abstract Although the invasion of exotic plants has been recognised as serious cause biodiversity loss and natural habitats degradation threat to ecosystems functions, just little attention paid potential impacts goldenrod on soil properties. Equally, currently obtained results are contrary ambiguous. We tested whether grass fields invaded uninvaded by Canadian (Solidago canadensis L.) differ in pH, moisture, organic carbon (Cox), humus P, K Mg contents related variations chosen...

10.1515/eko-2017-0009 article EN cc-by-nc-nd Ochrana prírody Slovenska/Ekológia 2017-06-23

Magnesium contamination in soil at a magnesite mining area of Jelšava-Lubeník (Slovakia) and their effect to the characteristics were determined. Soil samples collected Jelšava – Lubeník with specific alkaline pollutants, it is one most devastated regions Slovakia alarming degree environmental damage. Magnesite air pollutants are mixture MgO MgCO3 due which reaction can move above pH 8. Production clink accompanies enormous emissions dust particles into leakage gaseous compounds, mainly SO2...

10.1088/1755-1315/92/1/012012 article EN IOP Conference Series Earth and Environmental Science 2017-10-01

Fazekasova D., Kotorova Bobuľska L.: Development of biochemical parameters soil in conditions sustainable use soil. Ekologia (Bratislava), Vol. 31, No. 2, p. 238–247, 2012. The investigation was carried out during the years 1997-2000 and 2008-2009 under produc tion marginal region north-eastern Slovakia. aim research monitoring basic chemical properties (pH, N total , inorg P avail K Mg Co x ) relation to enzymes (acid phosphatase, alkaline urease), temporal spatial dimension. From point...

10.4149/ekol_2012_02_238 article EN Ochrana prírody Slovenska/Ekológia 2012-01-01

The focus of this work is on the evaluation selected water quality indicators as per applicable regulations, taking into account European and national legislation risk contamination surface waters with toxic elements using factor (Cfi) degree pollution (Cd). studied area Slovinky an important ore region, rich deposits copper silver ores that have been mined for centuries. One most remnants mining activities in tailing impoundment. sludge pond has 15 ha, height dam 113 m above sea level,...

10.3390/w13213143 article EN Water 2021-11-08

Abstract In the current study, we investigate relationships among soil functional diversity, physicochemical properties and heavy metals presence in an ecological farming system. The samples were collected from permanent research sites, A horizons, at a depth 0.05 m to 0.15 m, June 2018. fresh samples, evaluated metabolic profiles of their microbial communities, using Biolog® Eco Plates. showed that physical got adjusted after long-term application system measured values stabilised, reaching...

10.2478/foecol-2019-0017 article EN cc-by-nc-nd Folia oecologica 2019-12-01

Soil quality represents the ability of soil to secure environmental functions in a particular way using it. Health expresses protection and increasing biological productivity, health promotion all living forms, including humans. This study presents results long-term monitoring evaluation selected parameters terms sustainable land use marginal areas northeastern Slovakia During 1997–2013 (48º57'N, 20°05'E). Physical (bulk density, porosity), chemical (pH, anorganic nitrogen, available...

10.24326/as.2014.3.5 article EN cc-by-nc-nd Agronomy Science 2014-09-06

Mining and processing activities in the former mining Middle Spis area caused serious environmental problems. The aim of study is to determine content heavy metals (Cu, As, Pb, Fe, Hg) water describe flora diversity along Rudnansky creek, which flows through area. Chemical (pH) physical (water conductivity, oxygen saturation) properties were also evaluated. High values copper mercury determined at localities close tailing pond plant. Presence plant species resistant metals, such as...

10.1556/606.2015.10.2.11 article EN Pollack Periodica 2015-08-01

10.5593/sgem2014/b32/s13.010 article EN International Multidisciplinary Scientific GeoConference SGEM ... 2014-06-20
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