Temat: sediment accumulation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

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

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Skocz do pozycji: 3.

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

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Skocz do pozycji: 4.

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

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Skocz do pozycji: 5.

Tytuł:: Kumulacja metali oraz rownowaga kationowa Typha latifolia L. jako wskaznik stanu zanieczyszczenia srodowiska
Autorzy:: Letachowicz, B
Krawczyk, J.
Klink, A.
Powiązania:: https://bibliotekanauki.pl/articles/809414.pdf
Data publikacji:: 2006
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: metale ciezkie
osady
kumulacja
palka szerokolistna
bioindykatory
Typha latifolia
zawartosc makroelementow
rownowaga kationowa
zanieczyszczenia srodowiska
rosliny
heavy metal
sediment
accumulation
cattail
macroelement content
environment pollution
plant
Opis:: W pracy przedstawiono wyniki badań zawartości makroelementów i metali w osadach oraz w liściach i kłączach pałki szerokolistnej z 7 stanowisk z okolic Nysy (południowo-zachodnia część województwa opolskiego). Badane osady są słabo zasobne w N, P, K, Mg i Na, jedynie zawartość Ca jest duża. Natomiast zawartości metali nie przekraczają wartości tła. Zawartości makroelementów w liściach i kłączach pałki szerokolistnej jest średnia lub mała (P i Mg), jedynie zawartość Na przekracza zazwyczaj górny zakres. Większość metali (Fe, Zn, Cd i Cu) charakteryzuje podobny sposób rozmieszczenia w roślinie, najwięcej jest ich w kłączu, mniej w szczytowej części liścia, a najmniej w jego dolnej części. Wartości sum ważonych wyliczone dla części dolnych i szczytowych liści pałki szerokolistnej przekroczyły wartość 12,5, co spowodowane jest głównie podwyższoną zawartością sodu i wapnia w liściach. Istotne dodatnie korelacje pomiędzy zawartością metali w organach palki szerokolistnej a ich zawartością w osadach dennych świadczą o możliwości wykorzystania badanego gatunku w bioindykacji skażeń środowiska metalami ciężkimi.
The contents of macroelements (N, P, K, Ca, Mg, Na) and heavy metals (Cd, Pb, Ni, Mn, Zn, Fe) in bottom sediments as well as in leaves and rhizomes of Typha latifolia from seven water bodies in the Nysa region (south-western part of Opole Province) were determined. Examined bottom sediments contained low amounts of N, P, K, Mg and Na, while the concentration of Ca was very high. Also Na content in leaves and rhizomes of Typha latifolia exceed the upper limit, but concentrations of the rest nutrients were median or low (P and Mg). The highest level for majority of studied metals (Fe, Zn, Cd, and Cu) was found in rhizomes, less in the tip of leaf and the least in lower part of leaf. The weighed sums of square roots for relative cation concentrations in both parts of leaves were higher than 12.5 given by Czarnowski, mostly because of high Ca and Na concentrations. Significant, positive correlations found between the content of heavy metals in Typha latifolia and the levels of these elements in bottom sediments indicate a possibility of using examined plant in biomonitoring of environmental contamination with heavy metals.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 2006, 515; 241-249
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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