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    Wyświetlanie 1-5 z 5
    Tytuł:
    The ecological risk of contamination with toxic metals in soils around the Trepça complex, the Kosovo thermal power plants, and a New Co Ferronickeli complex
    Autorzy:
    Zuzaku, Islam
    Dhimitri, Jostina
    Sadiku, Makfire
    Halili, Jeton
    Ismajli, Betim
    Demaku, Skender
    Powiązania:
    https://bibliotekanauki.pl/articles/24201030.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    toxic metals
    geoaccumulation index
    Igeo
    pollution factor
    industrial revolution
    metale toksyczne
    wskaźnik geoakumulacji
    współczynnik zanieczyszczeń
    rewolucja przemysłowa
    Opis:
    Toxic waste, soil, and ash samples were collected in the landfill (solid environmental hot spots) near the Trepça complex, New Co Ferronickeli, and Kosovo thermal power plants. They were analyzed by the ICP-OES method to measure the concentration of some toxic metals. The pollutant with the highest mean concentration (in an acidic medium) was Fe (36 400.0), followed by Mn (8683.0), Cr (6575.0), As (4739.0), Pb (3364.0), Zn (2394.0), Ni (922.6), Cu (297.6), Co (46.6), and Cd (61.8) (all concentrations in mg/kg). Three pollution indices were used such as the geoaccumulation index (Igeo), contamination factor (CFi), and pollution load index (PLI). The CFi values determined for Fe, Mn, Cr, As, Pb, Zn, Ni, Cu, Co, and Cd indicated high contamination. In all soil samples, the PLI values showed the presence of soil pollution.
    Źródło:
    Environment Protection Engineering; 2023, 49, 2; 5--17
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physicochemical Analysis of the Water Wells in the Area of Kosovo Energetic Corporation (Obiliq, Kosovo)
    Autorzy:
    Demaku, Skender
    Bajraktari, Naser
    Powiązania:
    https://bibliotekanauki.pl/articles/124197.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    Kosovo Energetic Corporation
    wells
    physicochemical parameters
    heavy metals
    Opis:
    The authors analyzed the physicochemical parameters and heavy metals characterizing the wells at three different sites (nearby villages) in the area of KEC (Kosovo Energetic Corporation). The KEC power plants are the only ones in Kosovo that use fossil-fueled energy (lignite) for the production of the electricity. This process may pollute the environment through the release of airborne aerosols (contaminated with metals), ash (a part of its content that leaches in the underground waters), etc. This pollutes air, surface water, groundwater and soil. In addition, the coal exploitation activity as raw material for power plants, excavating from mining basins, conveyor belt transport, separation before combustion and other processes involving the formation of dust sources and coal particles in the air also contribute to the pollution. Thus, it is of utmost importance to evaluate the water quality of the wells that are used as drinkable water sources by the people that live in this industrial area.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 7; 155-160
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of Heavy Metals in Bee Honey as a Bioindicator in the Istog, Drenas and Kastriot Regions
    Autorzy:
    Demaku, Skender
    Aliu, Arbnorë
    Sylejmani, Donika
    Ahmetaj, Blerina
    Halili, Jeton
    Powiązania:
    https://bibliotekanauki.pl/articles/24201705.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    pollution
    environment
    honey
    heavy metals
    Opis:
    The major goal of this research was to employ honey as a bio-indicator to identify the heavy metal levels in bee honey in the Istog, Drenas, and Kastriot regions. As a result, honey was purposely tested in these locations, and two industrial specific areas were chosen for examination and analysis: Kastriot (Graboc) and Drenas (Vrboc), as these are considered to be among the most industrial polluted areas. A honey sample was also taken in the Istog (Vrell, as a clean area) region in order to compare not just honey, but also the area where the bee obtains nectar, as well as the sources of pollution discharge into the environment. Concentrations of heavy metals in honey, (min. and max.) amounted to: Zn (8.705–9.804 mg/kg), Mn (5.620–5.718 mg/kg), Fe (3.635–3.745 mg/kg) and Cu (2.295–2.299 mg/kg). In contrast, lower concentrations of metals, have been observed for: Ni (0.640–1.126 mg/kg), Pb (0.235–0.268 mg/kg), As (0.107–0.199 mg/kg), Cd (0.040–0.058 mg/kg) and Cr (0.025–0.036 mg/kg) while elements such as; Hg, and Co, are almost undetected. The study of hierarchical clusters revealed several groupings of elements with geogenic and anthropogenic origins. The concentrations of heavy metals selected for honey were compared to standards of other countries, such as Poland and other European Union countries. Samples were taken in October 2020 and September 2021. The concentration of heavy metals was determined using inductively coupled plasma optical emission spectrometry, ICP OES.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 5; 191--200
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of contamination with heavy metals in the environment. Water, sediment, and soil around Kosovo power plants
    Autorzy:
    Demaku, Skender
    Kastrati, Gani
    Halili, Jeton
    Powiązania:
    https://bibliotekanauki.pl/articles/2086906.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    heavy metals
    brown coal
    Kosovo
    power plant
    metale ciężkie
    węgiel brunatny
    Kosowo
    elektrownia
    Opis:
    In Kosovo, the current production of electricity depends mainly on its generation, which is based on the burning of lignite in the power plants (Kosovo power plants A and B). Significant changes were found in the concentrations of heavy metals in various sediment, soil, and water sample locations. Physicochemical parameters such as temperature, pH, dissolved oxygen, chemical oxygen demand, total dissolved solids, biochemical oxygen demand, and main ions (SO42-, PO43-, Cl-, NO3-, and NH4+) were monitored to obtain accurate and representative data. The study indicates that there is mild contamination from these elements in the river, however, to reach a clear conclusion, additional research should be done in the study area. The sampling took place over three months in 2018 (April, July and October). The data analysis revealed that the concentration of heavy metals such as Pb, Zn, Fe, Ni, Cd, Mn, Al, Cu, and Cr in several examined samples exceeds the maximum permissible limits. Substantial levels of metal pollution in the samples collected in three distinct locations were found.
    Źródło:
    Environment Protection Engineering; 2022, 48, 2; 15--27
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessing the Presence of Heavy Metals in the Area of Glloogoc (Kosovo) by Using Mosses as a Bioindicator for Heavy Metals
    Autorzy:
    Bajraktari, Naser
    Morina, Ilir
    Demaku, Skender
    Powiązania:
    https://bibliotekanauki.pl/articles/125260.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    heavy metals
    Pb concentrates
    Zn concentrates
    mosses
    bioindicators
    soil
    water
    sterile
    sludge
    landfill
    Ferronickel complex
    Opis:
    This study aimed at determining the level of pollution from heavy metals that are deposited from air in the area of Gllogoc. The main goal was to identify the emission sources of pollution by using mosses as bio indicators. In this study area, the mining of Fe-Ni (Industrial Ferronickel Complex) is believed to strongly influence the level of heavy metals. The mining and production activity of Fe-Ni affects the soil, water and air. As the air pollution (from liberated aerosols of Industrial Ferronickel Complex) and the deposition products of this pollution are harmful not only locally but also can pollute the environmental at extended distances, the use of mosses allows analyzing the content and origin of the pollution from heavy metals. ICP was used for the determination of heavy metals in moss samples. The use of Principal Component Analysis (PCA), dendograms and other statistical procedures, permitted to understand the source of the air pollution from heavy metals.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 6; 135-140
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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