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    Wyświetlanie 1-4 z 4
    Tytuł:
    Effect of Mining Activity in Accumulation of Heavy Metals in Soil and Plant (Urtica dioica L)
    Autorzy:
    Bislimi, Kemajl
    Sahiti, Hazbije
    Halili, Jeton
    Bici, Mentor
    Mazreku, Ilir
    Powiązania:
    https://bibliotekanauki.pl/articles/1839574.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    heavy metals
    soil
    translocation factor
    bioaccumulation
    Opis:
    Contamination of soil and water by various heavy metals such as Cd, Pb, Ni, Cu, and Fe is increasing day by day as a result of different activities, such as industrialization and urbanization. Lead (Pb), Cadmium (Cd), and Nickel (Ni) are examples of potential heavy metals that are neither essential elements nor have any role in the process of cell metabolism, but are easily absorbed and accumulated in different parts of a plant and living beings. This study was to investigate the translocation and bioaccumulation of heavy metals such as Pb, Ni, Cd, Cu, and Fe in Urtica dionica L and soil samples from 2 sites (uncontaminated – Koliq and contaminated – Kishnica in the Republic of Kosovo). The results revealed that in the contaminated site, the mean level of all the metals in soil and different parts (root, stalk, and leaf) of the plant were found to be significantly (p < 0.01) higher than the uncontaminated site. Multivariate analysis was used to determine the distribution of metals within the study area. The trace metal contents from different parts of these plants were determined by the use of AAS. The results revealed that Urtica dionica L. translocated high amounts of metals to its organs, especially to leaves, so that translocation factors were much higher than one (> 1). However, these concentrations of heavy metals in the soil and Urtica dionica L were higher than levels specified according to the standards in UK and Germany.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 1; 1-7
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plants and soil amendments for remediation of soil affected by synthetic oil and gas production wastewater
    Autorzy:
    Clay, L. H.
    Pichtel, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/363254.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    Bioconcentration factor
    constructed wetlands
    heavy metals
    hyperaccumulator
    produced water
    soil remediation
    Opis:
    Oil and gas production water (PW) is brought to the surface when hydrocarbon reservoirs deep within geologic strata are extracted. Large volumes of PW present environmental challenges when released to the land surface due to high levels of salinity and potentially toxic elements. The effects of PW on soil chemical properties and plant response were investigated in both growth chamber and field studies. In the growth chamber, wheat (Triticum aestivum) and red clover (Trifolium repens) were grown in soil which was flooded with synthetic PW. The PW was enriched with several metals (Na, Cu, Cr, Pb) and had an acidic pH (2.5) and EC of 33,650 dSm-1. Soil amendments included food waste compost, composted biosolids, gypsum (CaSO4) and NPK 10-10-10 fertilizer. Metal concentrations in soil and plants were determined using flame atomic absorption spectrophotometry. The food waste compost provided for maximal uptake by clover of Cu, Cr and Pb compared to all other amendments. In several soil treatments both wheat and clover behaved as metal hyperaccumulators having high bioconcentration factors (BCF, ratio of metal concentrations of plant tissue to soil). Clover was the most efficient in accumulating Cu and Cr in shoots (BCF = 22.2 and 30.6, respectively). Greatest metal uptake in both plant species occurred in either the biosolids or compost treatment. In a field study, plots were flooded with synthetic PW and grown to corn (Zea mays) and a turf mixture (Kentucky bluegrass, Poa pratensis and perennial ryegrass, Lolium perenne). Both corn and turf accumulated substantial soil Cu and Pb. Corn experienced significant die-off; however, turf survived the PW application. Turf mixtures, clover and/or wheat may be suitable for phytoremediation of PW-affected soil. Addition of organic amendments to soil may enhance metal uptake by plants.
    Źródło:
    Environmental Biotechnology; 2017, 13, 2; 1-13
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of some heavy metals contaminated soils around the Shahid Salimi power plant, Neka, Mazandaran Province, Iran
    Autorzy:
    Sedghi, M.
    Torkashvand, A.M.
    Asadi, M.E.
    Pazira, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/971564.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    background concentration
    contamination factor
    heavy metals
    mazandaran prov-
    ince
    soil contamination
    Opis:
    One of the most important problems threatening the health of natural resources and, in turn, the food safety of societies is environmental contamination. Heavy metals are considered as the environmental pollutants. The entry of heavy metals into the soil is done through the atmospheric sources and mostly via melting plants, oil refieries and power plants. Due to the mazut consumption in some seasons, power plants are considered as a threat to the soil. This study was conducted with the aim of evaluating contamination of some heavy metals including copper, zinc, cadmium, lead, and nickel in the soils around the Shahid Salimi power plant, Neka located in Mazandaran province, north of Iran. One of the greatest threats is the possible contamination of cultivated paddy by pollutant elements. A number of 50 samples from the soil around the power plant were taken from a depth of 0–20 cm within the form of a regular grid and the concentration of the corresponding metals was measured in each of them. The mean background concentration of copper, nickel, lead, zinc, and cadmium was 36.2, 339.8, 90.8, 13.8, and 0.20 mg∙kg, respectively. The maximum mean contamination factor belongs to nickel, lead, copper, zinc, and cadmium, respectively. The frequency of the obtained contamination evaluation classes indicates that the majority of the analyzed samples have a medium level of contamination. Copper, nickel, and lead belong to the class of very high contaminants. By comparing the concentrations of the heavy metals of studied region with quality standard of Iranian soil resources, presented by the Department of Environment Protection of Iran, it was observed that the concentrations of cadmium, zinc, and copper have been signifiant at the level of 5% based on the standards determined by the agency for agricultural uses, environmental standard and groundwater level. In other words, they do not have conflct with the determined standard at any of the three levels.
    Źródło:
    Polish Journal of Soil Science; 2019, 52, 1; 129-136
    0079-2985
    Pojawia się w:
    Polish Journal of Soil Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zawartość wybranych metali ciężkich w glebie i faunie glebowej
    The content of selected heavy metals in soil and soil fauna
    Autorzy:
    Chrzan, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/127369.pdf
    Data publikacji:
    2013
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    metale ciężkie
    fauna glebowa
    saprofagi
    drapieżce
    fitosaprofagi
    wskaźnik bioakumulacji
    soil fauna
    saprophags
    predators
    phitosaprophags
    bioconcentration factor values (BCF)
    heavy metals
    Opis:
    Badano zawartość wybranych metali ciężkich - kadmu Cd, ołowiu Pb, cynku Zn, miedzi Cu i niklu Ni w glebach łąkowych i leśnych oraz w wyekstrahowanych z próbek glebowych zwierząt. Stanowiska usytuowane były w różnej odległości od drogi i od źródeł emisji przemysłowych. Faunę glebową rozdzielono na grupy troficzne - saprofagi, drapieżne i fitosaprofagi, w których oznaczano metale ciężkie. Gleby na badanych stanowiskach wykazywały odczyn od słabo kwaśnego do słabo zasadowego i wilgotność w granicach 20-32%. Zawartość metali w glebie wynosiła odpowiednio: 0,63 0,94 ppm Cd; 8,8 12,53 ppm Pb; 77,75 148,78 ppm Zn; 12,17 ± 23,91 ppm Ni i 1,58 8,95 mg Cu kg–1 s.m. Wyniki badań wskazują, że stężenia metali ciężkich nie przekraczają norm określonych dla gleb Polski. Kumulacja metali ciężkich w organizmach zwierząt glebowych była znacznie wyższa niż w glebie. W największym stężeniu w organizmach badanej fauny glebowej występował Zn i Pb. Najwyższą zawartość Zn (ponad 19904 ppm) stwierdzono w organizmach drapieżców na stanowiskach leśnych. Natomiast wysokie stężenia ołowiu wykazano u fitosaprofagów w glebach łąkowych (128-421 ppm) i drapieżców na stanowiskach leśnych (200 i 500 ppm). Stwierdzono, że drapieżne zwierzęta glebowe lepiej akumulowały badane metale ciężkie w glebach leśnych niż inne grupy troficzne.
    Content was studied of selected heavy metals - cadmium Cd, lead Pb, zinc Zn, copper Cu and nickel Ni in meadow soils and in forest soils and in soil animals samples extracted from soil. Positions were located at different distances from the road and from sources of industrial emissions. Soil fauna were separated into trophic groups of saprophags, predators and phitosaprophags, in which heavy metals were determined. Soils on the test sites showed little reaction from acidic to slightly alkaline and humidity within 20-32%. The range of metals content in soils amounted to properly: 0.630.94 ppm Cd; 8.812.53 ppm Pb; 77.75148.78 ppm Zn; 12.17±23.91 ppm Ni and 1.588.95 mg Cu • kg–1 s.m. The results from the studies show that the heavy metal concentrations did not exceed the standards set out for the soils of Poland. Heavy metals accumulation in soil animal organisms was significantly higher than in the soil. In the examined organisms of soil fauna, the metals in the highest concentration were zinc and lead. The highest content of Zn (> 19904 ppm) was found in the bodies of the predators in forest stands. High concentrations of lead have been demonstrated in phitosaprophags in meadow soils (128-421 ppm) and in predators in forest sites (200-500 ppm). It was found that predators of soil animals are better at bioaccumulations of tested heavy metals in forest soils (BCF > 60) than other trophic groups.
    Źródło:
    Proceedings of ECOpole; 2013, 7, 1; 295-302
    1898-617X
    2084-4557
    Pojawia się w:
    Proceedings of ECOpole
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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