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    Wyświetlanie 1-6 z 6
    Tytuł:
    The content of macro and microelements in the shoots of Glyceria maxima of the Słupia River
    Autorzy:
    Parzych, A.
    Cymer, M
    Powiązania:
    https://bibliotekanauki.pl/articles/125150.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    macrophytes
    macroelements
    trace elements
    accumulation
    pollution
    Opis:
    The study shows the content of macro- and microelements in the leaves and rhizomes of Glyceria maxima of the Słupia River in Słupsk. The content of macro and micro-elements in G. maxima was analyzed for each component separately and in an integrated way, and comparing the demand for nutritions. The largest quantity of nitrogen, phosphorus, potassium, magnesium and calcium were found in the leaves, meanwhile zinc, iron, manganese, nickel and copper in the G. maxima rhizomes. The amount of Zn and Cu, in all of the tested positions, within the range of the limit for the plants, and the concentrations of Ni and Mn exceed physiological needs. The U Mann Whitney test showed a number of statistically significant differences in the concentration of the analyzed elements in leaves – rhizomes, leaves – bottom sediment and rhizome bottom sediment relation. The relations between designated heavy metals formed a following series: Mn>Fe>Zn>Ni>Cu in leaves and Fe>Mn>Zn>Ni>Cu in rhizomes. The G. maxima shoots accumulated 985.8 do 1441.4 mmolc∙kg-1 in all the analyzed components, and the lower value of the sum of the accumulated macro and microelements were found in rhizomes. The sum of ion comospition of the macronutrients in the leaves and rhizomes was similar. The content of nitrogen was 51.7–53.7% of this amount, 5.8–8.6% phosphorus, potassium 22.8 – 26.6%, 4.9-5.8% of magnesium, calcium, 8.2–11.9%, and trace elements were 0.58% in total, in the case of leaves and 8.70% in the rhizomes.
    Źródło:
    Journal of Ecological Engineering; 2014, 15, 4; 29-36
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Content and uptake of selected trace elements by weeds in potato to cultivation under different conditions of soil tillage and weed control methods
    Autorzy:
    Zarzecka, K.
    Gugała, M.
    Baranowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/124723.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    weeds
    trace elements
    content
    uptake
    potato
    Opis:
    The study utilized data from a field experiment carried out at the Experimental Station in Zawady owned by the University of Natural Sciences and Humanities in Siedlce in the years 2005–2007. The experimental factors included two soil tillage systems and seven weed control methods in potato. Iron, copper and zinc in weeds were deter- mined with the AAS method. The trace element content in weed dry matter before row closure of potato depended significantly on soil tillage methods (excluding Cu), weed control methods and weather conditions, and, prior to tuber harvest, on soil tillage and weather conditions during the growing season. The uptake of Fe, Cu, and Zn by weeds from the area of 1 hectare depended on the experimental factors, weed biomass and weed chemical composition.
    Źródło:
    Journal of Ecological Engineering; 2014, 15, 4; 131-136
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessing Spatial Distributions of Total Trace Elements Content in Bottom Sediments of Dzierżno Duże Water Reservoir – Geostatistics-Based Studies
    Autorzy:
    Rozpondek, R.
    Rozpondek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/123432.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    bottom sediments
    spatial distribution
    trace elements
    geostatistics
    Opis:
    The aim of this study was to assess the spatial distributions of total trace elements content in the bottom sediments of Dzierżno Duże water reservoir, along with the comparison of the accuracy and characteristics of Kriging and IDW interpolations. On the basis of regular measurement grid consisting of 53 points, bottom sediments samples were collected. Mean values of total trace elements content in bottom sediments of Dzierżno Duże were as follows: Zn – 410 mg/kg, Pb – 57 mg/kg, Cr – 36 mg/kg, Cu – 40 mg/kg, Cd – 5 mg/kg, Ni – 16 mg/kg and Ba – 267 mg/kg. According to the geochemical quality classification, the concentrations of Cd in 32% of samples were assigned to class IV (heavily contaminated), 45% to class III (contaminated), Zn in 42% samples to class III with 1 sample in class IV and 26% to class II (slightly contaminated), Pb in 9% to class III and 58% to class II, Cu in 4% to class III and 68% to class II, Cr in 17% to class II, Ni in 55% to class II, Ba in 8% to class III and 61% in class II. Coefficient of determination was determined between each case of trace elements content. The highest correlation (R2 in range from 0.81 to 0.96) was observed between Zn and Pb, Zn and Cu, Zn and Cr, Zn and Ni, Pb and Cu, Pb and Cr, Cu and Cr, Cr and Ni. Significant correlation (R2 in range from 0.70 to 0.80) occurred between: Zn and Cd, Pb and Ni, Cu and Ni, Cd and Ni. The lowest correlations (R2 in range from 0.25 to 0.70) were observed between concentration of Ba and the rest of trace elements. Two different interpolation methods were chosen for the purpose of generating spatial distributions – Inverse Distance Weighted and Ordinary Kriging. These methods were chosen for purpose of obtaining optimal accuracy result of spatial distributions. The distributions of trace elements content were classified by means of geochemical criteria. In the case of accuracy comparison between IDW and Ordinary Kriging, the former had slightly better results in terms of mean value and root mean square. The generated spatial distributions allowed to determine the most contaminated areas, which were mainly northern-central and southern-central parts of water Dzierżno Duże reservoir.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 3; 52-60
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Concentration of Trace Elements in Sewage Sludge From Wastewater Treatment Plant in Gniewino
    Autorzy:
    Milik, J.
    Pasela, R.
    Lachowicz, M.
    Chalamoński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/124352.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    trace elements
    heavy metals
    sewage sludge
    wastewater treatment plant
    Opis:
    The sewage sludge originating from wastewater treatment plants (WWTP) serving rural areas is suggested for agricultural or natural usage. However, sewage sludge is beforehand subjected to the several pre-treatments, which involve stabilization, hygienisation and pre-composting. These methods mainly decrease the amount of organic substances and the presence of microorganisms, but hardly affect the concentrations of heavy metals. The advantages of using sludges as fertilizer for improving and sustaining soil fertility and crop production are numerous. The addition of sewage sludge to soils could affect the potential availability of heavy metals. Trace elements are distributed in the soil in various forms: solid phases, free ions in soil solution, soluble organic-mineral complexes, or adsorbed on colloidal particles. The most undesirable heavy metals in sewage sludge that are toxic for the living organisms include: cadmium, chromium, nickel, lead and mercury. In the study, the concentrations of trace elements (Pb, Cd, Cr, Hg, Ni, Zn, Al, As, Se, B, Ba, Br, Ca, Cu, Fe, Mn, Na, Ga, Li, Mo, Sr, Mg, K, Ru, Tl, V, U) were tested in the sewage sludge obtained from a WWTP serving rural areas (PE< 9 000). In each case, the tested sewage sludge was meeting the criteria of stabilization and was used for agriculture and land reclamation purpose. All the samples were collected in 2016 and subjected to microwave mineralization in a closed system in aqua regia. The total amounts of macro and microelements were determined with a spectrophotometer Coupled Plasma emission ICP-OES. It was found that the total concentrations of trace metals in all of sewage sludges are the same as the Polish regulation limit of pollutants for sludge to be used in agriculture. European legislation is less restrictive and permits higher contents of heavy metals in sludge used for agriculture than Asia. The trace elements (cadmium: 1.16 mg·kg-1/d.m. in thePolish sewage sludge, are much higher than those in the other countries. Copper and zinc were the most prevalent elements observed (111.28 mg·kg-1/d.m. and 282.94 mg·kg-1/d.m., respectively). The concentrations of copper in the Polish sewage sludge are much lower (49–130 mg·kg-1/d.m.) than european sewage sludge (522–562 mg·kg-1/d.m.). The two of the tested heavy metals (beryllium, bismuth) were under the detection limit, while gallium, molybdenum, thallium, vanadium and silver were detected in the concentrations lower than 0.005 mg·kg-1/d.m. According to the obtained results, in all the tested samples, the total amount of trace elements, did not exceed the limit values in sewage sludge for their use in agriculture and land reclamation.
    Źródło:
    Journal of Ecological Engineering; 2017, 18, 5; 118-124
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zasoby i struktura użytkowania powierzchni ziemi i gleb w województwie podkarpackim
    Resources and structure of use the earth’s surface and soils in the podkarpackie province
    Autorzy:
    Kaniuczak, J
    Stanek-Tarkowska, J
    Knap, R
    Alvarez, B
    Pajączek, A
    Powiązania:
    https://bibliotekanauki.pl/articles/399857.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    województwo podkarpackie
    zasoby glebowe
    struktura użytkowania
    struktura zasiewów
    zakwaszenie
    przyswajalne makroelementy
    zanieczyszczenie
    pierwiastki śladowe
    retardacja
    Podkarpackie Province
    soil resources
    structure of use
    crop structure
    acidity
    available macronutrients
    pollution
    trace elements
    retardation
    Opis:
    Badano zasoby i strukturę użytkowania gleb w województwie podkarpackim w latach 1946-2005, z podziałem na trzy okresy czasowe, ze względu na zmiany administracyjne kraju i województwa (I: 1946-1970, II: 1975-1995, III: 2000-2005). W badanych trzech okresach czasowych zmniejszył się udział użytków rolnych i gruntów ornych w ogólnej powierzchni województwa. W latach 2000-2005 powiększył się znacząco udział powierzchni lasów i pozostałych gruntów, kosztem wyłączenia części gruntów ornych i użytków zielonych z produkcji rolniczej, które przekształciły się w ugory i odłogi. W gospodarstwach indywidualnych 32,7% powierzchni gruntów ornych została wyłączona z uprawy i przekształciła się w ugory i odłogi. W gospodarstwach sektora publicznego sytuacja była jeszcze bardziej niekorzystna, gdyż 86,1% gruntów ornych zostało objęte ugorowaniem i odłogowaniem. W badanym okresie struktura zasiewów poszczególnych roślin uprawnych uległa zasadniczym zmianom, uproszczeniom w kierunku monokultury zbożowej. Gleby Podkarpacia są zakwaszone i pilnie wymagają przeprowadzenia zabiegu wapnowania. Niezbyt korzystnie przedstawiała się zasobność gleb województwa podkarpackiego w przyswajalne formy makroelementów (P i K), a szczególnie w przyswajalny fosfor, co było skutkiem ograniczenia stosowania nawozów naturalnych i małego zużycia nawozów mineralnych. Ponad 90% gleb użytków rolnych województwa podkarpackiego wykazuje naturalną zawartość metali (Cd, Cu, Pb i Zn). Celem opracowania była analiza struktury użytkowania powierzchni Ziemi i gleb, z uwzględnieniem struktury zasiewów oraz niektórych elementów żyzności gleb i degradacji w kontekście spowolnienia niekorzystnych przemian.
    Use the resources and structure of the soil has been studied in Podkarpackie province in the years 1946-2005, divided into three periods of time due to administrative changes in the country and the region (I: 1946-1970, II: 1975-1995, III: 2000-2005). The three time periods studied decreased share of agricultural land and arable land in the general area of the province. In the years 2000-2005 has increased significantly the share of forests and other lands, at the expense of the exclusion of the arable lands and grasslands in agricultural production, which turned into fallow and uncultivated land. The farms 32.7% of arable lands was excluded from the cultivation and has evolved into a fallow and uncultivated land. The holdings of the public sector, this situation was even more unfavorable as it was, and took 86.1% of arable lands for fallow and outfield. During the study period, the structure of individual crops sown undergone substantial changes in the direction of simplification cereal monoculture. The soils of Podkarpackie province are acidic and urgently require liming treatment. Unfavorably was presented a richness soils of available forms macronutrients (P and K) in Podkarpackie province, especially in available phosphorus, which was the result of limitations of organic fertilization and low consumption of mineral fertilizers. Over 90% of agricultural soils of Podkarpackie province exhibits natural content of metals (Cd, Cu, Pb and Zn). The aim of the study was to analyze the structure of the Earth's land use and soils, taking into account the structure of crops and some elements of soil fertility and degradation in the context of a slowdown adverse changes.
    Źródło:
    Inżynieria Ekologiczna; 2013, 34; 140-148
    2081-139X
    2392-0629
    Pojawia się w:
    Inżynieria Ekologiczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distribution of Trace Elements, Rare Earth Elements and Ecotoxicity in Sediments of the Kosva Bay, Perm Region (Russia)
    Autorzy:
    Ushakova, Evgeniya
    Menshikova, Elena
    Blinov, Sergey
    Vaganov, Sergey
    Perevoshchikov, Roman
    Powiązania:
    https://bibliotekanauki.pl/articles/2086373.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    trace element
    rare earth elements
    sedimentation
    bottom sediment
    ecotoxicity
    acid mine drainage
    Opis:
    Over a long period of time, a huge amount of technogenic bottom sediments has been accumulating in the Kosva Bay with significant concentrations of amorphous iron and aluminium hydroxides, which, in turn, are active sorbents of pollutants. This study examines the distribution of trace elements and rare earth elements and their toxicity in the Kosva Bay of the Kama Reservoir (Perm Region, Russia). In the middle reach, the Kosva River crosses the Kizel coal basin, where acid mine water is discharged from closed mines. The average content of trace elements in the samples of bottom sediments of the bay varies from 0.10 mg/kg (Se) to 176.36 mg/kg (Ba). The amount of rare earth elements varies from 66.8 to 83.6 mg/kg. The ecological significance of trace elements and rare earth elements was studied using an element-by-element assessment (EF and Igeo), Potential Ecological Risk Index (RI), Mean Probable Effect Concentration Quotient (PECQ), and two bioassays (Daphnia magna Straus and Scenedesmus quadricauda (Turp.) Breb. The highest Hg enrichment was found at two sampling points. Taking into account the average value of Igeo, the pollution by Co, V, Nb, Hg, Sn, Zn, Sm, Ni, Cr, and Gd is the highest and corresponds to extremely contaminated category. The RI values indicate that pollution categories vary from moderate risk to considerable risk. According to mean PECQ values, bottom sediments of the bay have moderate potential toxicity towards biological communities. Results of chronic and acute toxicity on test objects D. magna and Scenedesmus quadricauda Breb show the water extract from bottom sediments having no effects on the test objects. The results of the study show that in order to assess the quality of bottom sediments, an integrated approach, combining chemical and ecotoxicological analyses, is needed.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 4; 1--16
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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