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Tytuł:
Recent changes in sediment accumulation rates in Adventfjorden, Svalbard
Autorzy:
Zajaczkowski, M.
Szczucinski, W.
Bojanowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/48792.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
accumulation rate
caesium
subpolar fjord
210 lead
sediment
Adventfjorden
lead
137 caesium
Svalbard
Opis:
Recent sediment accumulation rates in Adventfjorden (Svalbard), a small subpolar fjord, were determined by 210Pb and 137Cs dating. Modern rates in the central basin decrease downfjord from 1.87 to 0.87 cm y−1 (2.6 to 1.19 g cm−2 y−1). Comparison of the modern values (1986–2001) with older ones (1963–86) reveals a marked increase in sediment accumulation rates in the last ten years. This correlates well with recent climate changes (warming and increase in precipitation). Comparison with particulate matter flux data indicates that a portion of the sediment is passed on to Isfjorden.
Źródło:
Oceanologia; 2004, 46, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeoecology of basins of organic sediment accumulation in the Reserve Dury
Autorzy:
Kowalewski, Grzegorz
Milecka, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/2027621.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
floating mire
pollen analysis
lacustrine sediments
shoreline changes
postglacial and Holocene succession
Opis:
The Reserve Dury, Tuchola Pinewoods, Poland, includes five depressions with no outflow filled up with biogenie sedi- s q ments. They undergo terrestrialization processes to a high degree. In four of the basins there are still some open water areas surrounded by floating mire with raised and transitional bog plants. For the needs of protection service officers some palynological and geological research were carried out. All the geological cores were described in detail following the Troels-Smith system. The deepest core Dury I was selected for pollen analysis. Ten Local Pollen Assemblage Zones (L PAZ) show the history ofregional and local plant communities. On the basis of two air photographs, modem dynamics of floating mire in four basins were evaluated. The results allow us to correlate the geological layers, to describe the Late Glacial and Holocene succession of plant cover at Dury I site, and to show the stages of filling-in of basins with lacustrine sediments and peat.
Źródło:
Studia Quaternaria; 2003; 73-82
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problem zamulania zbiorników kaskady Soły
Sediment accumulation problem in Soła River dam cascade
Autorzy:
Jaguś, A.
Powiązania:
https://bibliotekanauki.pl/articles/399824.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
zbiornik zaporowy
kaskada Soły
osady denne
ochrona zasobów wodnych
dam water reservoir
Soła River dam cascade
bottom sediments
water resources protection
Opis:
W artykule przedstawiono problem zamulania zbiorników zaporowych. Studia dotyczyły kaskady rzeki Soły, składającej się z trzech zbiorników: Tresna, Porąbka, Czaniec. Pełni ona ważną rolę w gospodarce wodnej województwa śląskiego. Wykazano, że obszar zlewniowy jest niewłaściwie zagospodarowany, co w warunkach górskich sprzyja procesom spływu powierzchniowego i erozji. Soła, zwłaszcza podczas wezbrań, transportuje duże ilości rumowiska, które prawie w całości jest deponowane w zbiorniku Tresna. Tempo zamulania zbiornika Tresna wynosi 0,309 mln m3 rocznie, a zbiornika Porąbka 0,042 mln m3 rocznie. Zbiornik Czaniec jako silnie przepływowy nie gromadzi osadów. Działania zapobiegające zamulaniu są niewystarczające – powinny być realizowane systemowo zwłaszcza w zlewni Soły powyżej zbiornika Tresna, aby utrzymać jego możliwości retencyjne.
The paper focuses on the problem of sediment accumulation in dam reservoirs. The studies were conducted in Soła River dam cascade containing three reservoirs: Tresna, Porąbka, Czaniec. It plays an important role in the water management in Silesian province. It was revealed that the catchment area is improperly managed which, under the mountainous conditions, leads to surface runoff and erosion processes. Soła, especially during the floods, transports large quantities of debris that are almost entirely deposited in the Tresna reservoir. The rate of deposit accumulation in Tresna water body amounts to 0.309 million m,sup>3 per year, and in the Porąbka reservoir it is estimated to 0.042 million m3 per year. The Czaniec reservoir, as fast flow reservoir, does not accumulate deposits at all. The actions aiming at prevention of sediments accumulation are insufficient – they should be realized systemically particularly in the Soła catchment above Tresna reservoir in order to maintain its retention capability.
Źródło:
Inżynieria Ekologiczna; 2017, 18, 5; 92-102
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sedimentation from suspension and sediment accumulation rate in the River Vistula prodelta, Gulf of Gdansk (Baltic Sea)
Autorzy:
Damrat, M.
Zaborska, A.
Zajaczkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/48809.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
sedimentation
suspension
sediment accumulation
redeposition
Vistula River
river discharge
Gdansk Gulf
Baltic Sea
water salinity
turbidity
temperature
Źródło:
Oceanologia; 2013, 55, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Equation Describing the Filtration Process with Compressible Sediment Accumulation on a Filter Mesh
Równanie filtracji z utworzeniem osadu ściśliwego na siatce filtracyjnej
Autorzy:
Piecuch, T.
Piekarski, J.
Malatyńska, G.
Powiązania:
https://bibliotekanauki.pl/articles/204963.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
filtracja
ściśliwości osadu
analiza teoretyczna
filtration process
sediment compressibility
theoretical analyses
Opis:
Filtration process is one of the basic and essential processes in technological systems for treatment of municipal, community and industrial wastewater treatment. Filtration process is a subject of numerous published research and theoretical elaborations. This publication concerns theoretical analysis with basic character, and is a verification of theoretical analysis and physical equations describing process of filtration aided with empirical formulas.
Filtracja należy do podstawowych i głównych procesów w układach technologicznych oczyszczania ścieków miejskich, gminnych i przemysłowych. Proces filtracji jest przedmiotem ogromnej ilości publikowanych badań oraz rozważań teoretycznych. Niniejsza publikacja dotyczy analizy teoretycznej o charakterze podstawowym, stanowi uzupełnienie i rozwinięcie klasycznej teorii filtracji. Oryginalność tych rozważań teoretycznych polega na tym, że Autorzy przyjmują, iż współczynnik przepuszczalności „k” opisany równaniem (2) jest funkcją nie ciśnienia zgniotu jak m.in. (4) lecz ogólnego ciśnienia filtracji m.in. [26÷31]. Takie założenie umożliwia rozwiązanie ogólnego równania filtracji (4) odniesionego do wariantu różniczkowego równania filtracji przy stałym ciśnieniu (7) poprzez całkowanie dla różnych wartości przyjętych współczynników ściśliwości osadu. Efektem tych obliczeń są końcowe równania (16), (23), (30) oraz (35).
Źródło:
Archives of Environmental Protection; 2013, 39, 1; 93-104
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea)
Autorzy:
Hille, S.
Leipe, T.
Seifert, T.
Powiązania:
https://bibliotekanauki.pl/articles/48484.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
hydrography
Gotland Basin
sediment accumulation
spatial variability
sedimentation rate
Baltic Sea
Opis:
In order to study recent sedimentation rates in the Eastern Gotland Basin, 52 short sediment cores collected from the deepest part (<150 m)of the Basin in 2003 were investigated. The upper parts of all the cores were distinctly laminated and dark in colour, followed by a homogeneous, greyish lower part. The thickness of the laminated sequences varied from 17 to 300 mm. 210Pb dating analyses of selected cores revealed that the change from non-laminated to laminated sediments happened about 100 years ago, indicating a shift from predominantly oxic bottom water conditions to anoxic conditions. Used as a time marker, this shift in the sediment texture enabled sediment accumulation rates to be estimated for all sediment cores. The observed mean linear sedimentation rate for the whole basin was 0.93 ± 0.67 mm yr−1. The respective bulk sediment accumulation rates ranged from 10.5 to 527 g m−2 yr−1 with an average of 129 ± 112 g m−2 yr−1, indicating a high spatial variability of sedimentation rates within the basin. This agrees very well with the long-term sedimentation pattern since the Litorina transgression. The observed pattern clearly reflects the hydrographic conditions at the seafloor as studied by modelled near-bottom current velocities.
Źródło:
Oceanologia; 2006, 48, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sediment accumulation rates in the gotland deep, Baltic proper obtained by 210 Pb and 137 Cs Methods
Szybkość sedymentacji powierzchniowych osadów bałtyckich zmierzona przy użyciu 210 Pb i 137 Cs
Autorzy:
Szczepańska, A.
Zaborska, A.
Pempkowiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/1819821.pdf
Data publikacji:
2009
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
sedymentacja
metoda 210 Pb o 137 Cs
sedimentation
Pb and 137 Cs methods
Opis:
Geochronology of sediments has important contribution to limnology and geochemistry including studies of accelerated eutrophication or regional erosion rates. It is also widely used to determine recent history of anthropogenic pollution and material balance [2]. Several different methods may be used to determine the ages of sediment layers. Historically, chronology has been based on qualitative methods such as stratigraphy, tectonics and morphology. However, the best results are obtained by means of radiometric dating, based on radioactive element activity e.g. radiocarbon, thorium, radiolead [11, 13].
Metoda ołowiowa jest powszechnie używana do oznaczania wieku osadów. Dodatkowo pozwala ona lepiej zrozumieć procesy geochemiczne zachodzące w osadach. W celu poprawy jakości wyników metodę ołowiową weryfikuję się używając 137 Cs. Poniższy artykuł dotyczy porównania szybkości sedymentacji osadów uzyskanych przy pomocy metody ołowiowej (model CRS- Constant Rate of Supply) z wynikami uzyskanymi za pomocą 137 Cs. Obliczenia wykonane zostały dla dwóch osadów pobranych z Głębi Gotlandzkiej. Wyznaczone metodą ołowiową wartości współczynników sedymentacji (0,7 mm/rok dla I stacji i 0,5 mm/rok dla II stacji) były niższe od współczynników sedymentacji obliczonych za pomocą 137 Cs (1,5 mm/rok dla I stacji i 1,7 mm/rok dla II stacji). Rozbieżność była spowodowana mieszaniem powierzchniowym osadów.
Źródło:
Rocznik Ochrona Środowiska; 2009, Tom 11; 77-85
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Akumulacja osadów na równinach zalewowych rzek silnie zmienionych antropogenicznie: górna Wisła i Odra
Sediment accumulation on alluvial plains of the heavily impacted river reaches: upper Vistula and Odra, southern Poland
Autorzy:
Ciszewski, D.
Czajka, J.
Powiązania:
https://bibliotekanauki.pl/articles/2074705.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
osady rzeczne
akumulacja
zmiany koryta
skażenie
metale ciężkie
river sediments
accumulation
channelization
pollution
heavy metals
Opis:
Overbank sediment profiles of the channelized and heavily polluted Vistula and Odra rivers were investigated in southern Poland. The sediments are usually represented by sandy layers about a dozen centimetres thick, intercalated with black sandy muds few centimetres thick and rich in organic matter. Accumulation of these sediments started by the end of 19th century. The sediments are contaminated with heavy metals in amounts exceeding background values by two orders of magnitude and contain coal particles dispersed in black layers. These fine sediments initially accumulated over gravel bars at the channel banks due to lateral channel stabilization by stony groynes and bank revetments, constructed in 19th and 20th century. Progressively the sediments, which are up to 4 m thick, became a part of 20–30 m wide floodplain zones along many reaches of the upper Vistula and Odra. The distribution of these sediments is related to the degree of channel narrowing and incision induced by 19th and 20th century channelization.
Źródło:
Przegląd Geologiczny; 2009, 57, 7; 576-576
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatio-temporal patterns of PAHs, PCBs and HCB in sediments of the Western Barents Sea
Autorzy:
Zaborska, A.
Carroll, J.
Pazdro, K.
Pempkowiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/47438.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Arctic
Barents Sea
hexachlorobenzene
marine sediment
organic contaminant
persistent organic pollutant
polychlorinated biphenyl
polycyclic aromatic hydrocarbon
sediment
sediment accumulation
spatio-temporal pattern
Opis:
We examine the composition and levels of organic contaminants (PAHs, PCB, HCB) in four sediment cores collected from the Barents Sea. We assess the influence of temporal variations in contaminant supplies and post-depositional reworking on contaminant distribution. Anthropogenic levels of P12PAH reached 95 ng g−1, higher inventories dominated by BKF were observed at southern stations, while northern stations exhibited lower inventories with PHE as the dominant compound. The PCB composition was similar at all stations dominated by CB101, 138 and 153. P7PCB concentrations were higher at northern stations. The observed composition and spatio-temporal pattern of organic contaminants is in accordance with long-range transport supplies.
Źródło:
Oceanologia; 2011, 53, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sediment deposition and accumulation rates determined by sediment trap and 210Pb isotope methods in the Outer Puck Bay (Baltic Sea)
Autorzy:
Szmytkiewicz, A.
Zalewska, T.
Powiązania:
https://bibliotekanauki.pl/articles/48615.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
sedimentation
sediment trap
sediment layer
suspended particulate matter
210 lead
organic matter content
isotopic method
hydrogen peroxide
radioisotope method
Puck Bay
Baltic Sea
Źródło:
Oceanologia; 2014, 56, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy Metal Accumulation in Sediment and Removal Efficiency in the Stabilization Ponds with the Hydrocotyle ranunculoides Filter
Autorzy:
Custodio, María
Orellana-Mendoza, Edith
Peñaloza, Richard
De la Cruz-Solano, Heidi
Bulege-Gutiérrez, Wilfredo
Quispe-Mendoza, Rebeca
Powiązania:
https://bibliotekanauki.pl/articles/124031.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
heavy metals
stabilization ponds
Hydrocotyle ranunculoides
sediment quality
removal efficiency
Opis:
The heavy metal accumulation in the sediment and removal efficiency in stabilization ponds with Hydrocotyle ranunculoides filter were evaluated. Sediment and water were sampled in June, July and August 2018. The sediment sampling for each lagoon was conducted at three sites forming a composite sample. The water samples were collected in the tributary and effluent pipelines to determine the heavy metal concentration and removal efficiency by Hydrocotyle ranunculoides. The determination of heavy metals was performed with the method of atomic flame absorption spectrophotometry. The mean concentration of heavy metals in the sediment, in a descending order, was: Fe > Zn > Pb > Cu > Cd. The concentrations of these metals ranged from 998.0 to 1365.02, from 488.01 to 600.30, from 88.23 to 95.01, from 1.47 to 1.53 and from 0.01 to 0.13 mg/Kg, respectively. In the four stabilization ponds, the pollution factor values for Cd, Cu and Fe qualified as low pollution factor. While for Zn and Pb, they qualified as moderate pollution factors. The heavy metal removal rates from the water varied by metal.
Źródło:
Journal of Ecological Engineering; 2020, 21, 5; 72-79
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sediment Accretion and Total Organic Carbon Accumulation Among Different Mangrove Vegetation Communities in the Kamora Estuary of Mimika Regency, Papua, Indonesia
Autorzy:
Setyadi, Gesang
Sugianto, Denny Nugroho
Wijayanti, Diah Permata
Pribadi, Rudhi
Supardy, Eddy
Powiązania:
https://bibliotekanauki.pl/articles/2028102.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aerial root
carbon accumulation
Mangrove
Mimika
Papua
sediment accretion
Opis:
A sediment accretion and carbon accumulation study was carried out in Kamora Estuary, Mimika Regency, Papua Province, Indonesia, to determine the accretion rate and total organic carbon loading in the area as well their correlation with geographical setting and mangrove aerial root type. The sediment stake method was used to measure the elevation changes, whereas the sediment trap method was used to determine sediment accretion and total organic carbon accumulation. Three locations were selected, namely at upstream, middle and downstream the mangrove communities, with each location installed up to 500 m perpendicular to the riverbank. The elevation changes based on sediment stakes were $8.4–12.3 mm$ $year^{-1}$. Sediment accretion based on sediment traps was $18.5–25.4 mm$ $year^{-1}$ or $1.88–2.98 g$ $cm^{-2}$ $year^{-1}$, while the mean total organic carbon accumulation was $736.8 ±169 g$ $m^{-2}$ $year^{-1}$. The results are higher than those of similar studies in other regions, but they are consistent with other studies in Papua New Guinea. This study found that higher sediment accretion occurred at the riverbank compared with the interior area, while the elevation changes were greater in the upstream area. Higher relative density and higher basal area had a negative correlation with sediment accretion, but the number of roots had a positive correlation with sedimentation. The high sedimentation in the Kamora Estuary is resulting in the expansion of the mangrove forest at a rate of $3%$ $year^{-1}$. Assisted mangrove colonization can be applied to expand the mangrove forest, especially considering the use of Rhizophora species, which this study found to be more effective at trapping sediment.
Źródło:
Journal of Ecological Engineering; 2021, 22, 11; 142-156
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Surface Sediment Quality in Rivers with Fish Farming Potential (Peru) Using Indicators of Contamination, Accumulation and Ecological Risk of Heavy Metals and Arsenic
Autorzy:
Custodio, María
Fow, Anthony
Peñaloza, Richard
Chanamé, Fernán
Cano, Deyvis
Powiązania:
https://bibliotekanauki.pl/articles/1838420.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sediment quality
river
fish potential
pollution
accumulation
ecological risk
Opis:
Surface sediment quality of potential rivers in Peru was evaluated using indicators of contamination, accumulation and ecological risk of heavy metals and As. Surface sediment samples were collected at 54 sampling sites in the Tishgo and Chia rivers during 2018. The determination of Cu, Pb, Zn and As was performed by flame atomic absorption spectrophotometry. The results revealed the decreasing order of the mean concentrations of heavy metals and As in the Chia River of Zn > Cu > As > Pb and Tishgo of Zn > Pb > As > Cu. The PLI for the Tishgo River were greater than one (PLI > 1) denoting the deterioration it has been experiencing. In the Chia River, 60% of the sampling sites indicated no appreciable contamination by these elements (PLI < 1). The Igeo values of As in both rivers showed a state of contamination, from moderately to severely contaminated. In the Tishgo River the potential ecological risk varied from low to moderate and in the Chia River from low to considerable. Finally, this study reveals the applicability of the evaluation indexes of contamination, accumulation and potential ecological risk of toxic metals so that special control measures can be adopted.
Źródło:
Journal of Ecological Engineering; 2021, 22, 5; 78-87
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accumulation of zinc in water, sediments and bleak fish (Alburnus alburnus L.) in the ecosystem of the Dunajec River
Autorzy:
Niemiec, M.
Powiązania:
https://bibliotekanauki.pl/articles/15052.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
zinc accumulation
water
sediment
bleak
fish
Alburnus alburnus
ecosystem
Dunajec River
Opis:
Zinc present in water penetrates into the organism of a fish either directly, through the skin and gills, or indirectly, with food taken into the alimentary canal. The toxocity of this metal is associated with the transporting function of blood, which distributes it over the whole organism. The aim of this paper was to assess the zinc content in water and bottom sediments collected from the Dunajec River, and also in selected organs of bleak (Alburnus alburnus L.). The bioaccumulation factors for this element in the muscles, liver, skin and bones of the fish were calculated from the results of the research, which was carried out in 2011. Samples of water and bottom sediments were collected twice, in July and October, at 5 research points located in Szczepanowice, Janowice, Wróblowice, Lusławice, and Zakliczyn. Twenty-nine specimens of bleak were provided by members of the Polish Angling Association (PZW — Polski Związek Wędkarski), from catches performed in the second half of July. The zinc concentration in the samples was determined by inductively coupled plasma atomic emission spectrometry at a wavelength of 206.200 nm, conducted on an Optima 7600 DV spectrometer made by Perkin Elmer. The limit of detection for zinc was 5.9 μg · dm-3. High concentrations of zinc in the water were found, indicative of anthropogenic enrichment of the river with this element. The zinc content in the analysed sediments was below the geochemical background value for bottom sediments in Poland. Zinc concentrations in the fish varied within a range from 152.6 to 352 mg ∙ kg-1 in the skin, from 158.8 to 271.3 mg ∙ kg-1 in the bones, from 27.32 to 97.35 mg ∙ kg-1 in the muscles, and from 82.39 to 230.7 mg ∙ kg-1 in the liver. The mean content of zinc in individual organs decreased in the following order: skin > skeleton > liver > muscles. Zinc concentrations in individual organs of the fish were comparable with the ones determined eslewhere in environments polluted with this element.
Źródło:
Journal of Elementology; 2016, 21, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accumulation of zinc in water, sediments and bleak fish (Alburnus alburnus L.) in the ecosystem of the Dunajec River
Autorzy:
Niemiec, M.
Powiązania:
https://bibliotekanauki.pl/articles/1189817.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
zinc accumulation
water
sediment
bleak
fish
Alburnus alburnus
ecosystem
Dunajec River
Opis:
Zinc present in water penetrates into the organism of a fish either directly, through the skin and gills, or indirectly, with food taken into the alimentary canal. The toxocity of this metal is associated with the transporting function of blood, which distributes it over the whole organism. The aim of this paper was to assess the zinc content in water and bottom sediments collected from the Dunajec River, and also in selected organs of bleak (Alburnus alburnus L.). The bioaccumulation factors for this element in the muscles, liver, skin and bones of the fish were calculated from the results of the research, which was carried out in 2011. Samples of water and bottom sediments were collected twice, in July and October, at 5 research points located in Szczepanowice, Janowice, Wróblowice, Lusławice, and Zakliczyn. Twenty-nine specimens of bleak were provided by members of the Polish Angling Association (PZW — Polski Związek Wędkarski), from catches performed in the second half of July. The zinc concentration in the samples was determined by inductively coupled plasma atomic emission spectrometry at a wavelength of 206.200 nm, conducted on an Optima 7600 DV spectrometer made by Perkin Elmer. The limit of detection for zinc was 5.9 μg · dm-3. High concentrations of zinc in the water were found, indicative of anthropogenic enrichment of the river with this element. The zinc content in the analysed sediments was below the geochemical background value for bottom sediments in Poland. Zinc concentrations in the fish varied within a range from 152.6 to 352 mg ∙ kg-1 in the skin, from 158.8 to 271.3 mg ∙ kg-1 in the bones, from 27.32 to 97.35 mg ∙ kg-1 in the muscles, and from 82.39 to 230.7 mg ∙ kg-1 in the liver. The mean content of zinc in individual organs decreased in the following order: skin > skeleton > liver > muscles. Zinc concentrations in individual organs of the fish were comparable with the ones determined eslewhere in environments polluted with this element.
Źródło:
Journal of Elementology; 2016, 21, 1; 173-184
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 24

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