Wyniki wyszukiwania

1

Mercury in surface sediments associated with shipyard activity in the city of Gdansk

100%

Falandysz J.

Polish Journal of Environmental Studies

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1999

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tom 08

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nr 4

The aim of the present work was to elucidate if a long tradition of the shipyard activity has an influence on a status of mercury contamination of the surface sediments and port watercourse of the city of Gdansk. Concentrations of total mercury (Hg) were determined in surface (0-10 cm) sediments collected from the area of the shipyard canals in the city of Gdansk in 1996. Only a relatively small variations in spatial distribution of mercury in surface sediments examined were found, and the range of concentrations was from 300 to 1300 ng/g dry weight. Despite of relatively high mercury concentrations determined in surface sediments examined the overall range of the values was of the same order of magnitude as indicated earlier in samples collected from the Old Motlawa River and the Dead Vistula River Channel (Martwa Wisla) from the administrative area of the city of Gdansk in 1993-1995. The results did indicate that the shipyard activity doesn't has any impact on mercury load of the sediment in surrounding canals. The source of pollution with mercury in the canals investigated can be a storm water washing out various surfaces both from the urbanised area and including the shipyards of the city of Gdansk.

2

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Mineralogical and chemical composition of the mud fraction from the surface sediments of Sharm Al-Kharrar, a Red Sea coastal lagoon

72%

Basaham A. S.

Oceanologia

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2008

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tom 50

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nr 4

557-575

Interaction between continental and marine end-members gives rise to the natural biogeochemical processes in Sharm Al-Kharrar, a lagoon in the arid Red Sea region. Twenty-nine surface sediment samples were collected from the area and their mud fraction analysed for grain size, OC, CaCO3, mineralogy and elemental composition. The mud fraction consisted of a mixture of siliciclastic/calcareous materials, dominated by silt size materials and characterised by low OC (average 0.71% ±0.13); CaCO3 varied widely, with an average of 45% ±18. Concentrations of Al, Fe, Mn, Cu, Ni, Cr, V and Ba showed a wide range of variation throughout the Sharm. The results were normalised to Al and subjected to cluster analysis in order to examine the relations between the mineralogy and the elemental composition. The contents of Al, Fe, Mn, Cu, Ni, Cr, V and Ba appeared to be influenced by the mixing of the two end-members in addition to the physiochemical processes associated with the mixing between episodic freshwater flooding and seawater. Zn was the single element that showed a slight departure from the mixing model.

3

Microzooplankton in a warming Arctic: a comparison of tintinnids and radiolarians from summer 2011 and 2012 in the Chukchi Sea

72%

Dolan J. R., Yang E. J., Kim T. W., Kang S.-H.

Acta Protozoologica

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2014

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tom 53

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nr 1 Spec.is. Marine Heterotrophic Protists

4

Spatial distribution of biological and physical sediment parameters in the Western Gulf of Gdansk

72%

Huzarska K.

Oceanologia

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2013

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tom 55

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nr 2

5

Persistent organic pollutants [POPs] and polycyclic aromatic hydrocarbons [PAHs] in surface sediments from selected fjords, tidal plains and lakes of the North Spitsbergen

72%

Sapota G., Wojtasik B., Burska D., Nowinski K.

Polish Polar Research

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2009

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tom 30

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nr 1

59-76

6

Distribution of metals and extent of contamination in sediments from the South-Eastern Baltic Sea (Lithuanian zone)

72%

Remeikaite-Nikiene N., Garnaga-Budre G., Lujaniene G., Joksas K., Stankevicius A., Malejevas V., Bariseviciute R.

Oceanologia

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2018

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tom 60

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nr 2

7

Comparison of the burial rate estimation methods of organic and inorganic carbon and quantification of carbon burial in two high Arctic fjords

72%

Koziorowska K., Kulinski K., Pempkowiak J.

Oceanologia

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2018

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tom 60

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nr 3

8

Geochemical fractionation of heavy metals in sediments of the Red Sea, Saudi Arabia

72%

Al-Mur B. A.

Oceanologia

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2020

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tom 62

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nr 1

9

Horizontal and vertical distribution of lignin in surface sediments of the Gdańsk Basin

72%

Staniszewski A., Lejman A., Pempkowiak J.

Oceanologia

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2001

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tom 43

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nr 4

The aim of this study was to identify and quantify lignin transported from the River Vistula to the accumulation area in the Gdańsk Basin. Sediment samples collected along the Vistula mouth –Gdańsk Deep transect were analysed for lignin. Lignin was characterised by oxidative degradation, cupric oxide being chosen as the most suitable oxidising agent. The polar functional groups of the oxidation products were silylated and the derivatives analysed by capillary gas chromatography on fused capillary silica columns with flame ionisation detection. Lignin-derived oxidation products were quantified in the range from 3 to 20 μg g−1 dry wt. for phenolic acids and from 6 to 12 μg g−1 dry wt. for phenolic aldehydes. Differences in oxidation products contents are assigned to different lignin sources in the marine environment. The horizontal and vertical gradients of these compounds in the sediments of the Gdańsk Basin are documented. The results are discussed in terms of the origin and fate of organic matter in the Gdańsk Basin. The measured differences in quality and quantity of the identified oxidation products provide insight into diagenetic processes in the surface marine sediments.

10

Heavy metals in the Baltic surface sediments

72%

Pempkowiak J., Walkusz-Miotk J.

Bulletin of the Polish Academy of Sciences. Earth Sciences

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1994

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tom 42

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nr 1

11

Transport of the river load from the Bladzikowski Stream to the Puck Lagoon (Southern Baltic Sea, Poland)

58%

Damaszke M., Szymczak E.

Oceanological and Hydrobiological Studies

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2013

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tom 42

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nr 2

12

Carbon and nitrogen content and degradation ratio of suspended matter and surface sediments of the Gulf of Gdansk in spring 1995

58%

Maksymowska D.

Oceanological Studies

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1996

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tom 25

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nr 3

13

Occurrence and germination of dinoflagellate cysts in surface sediments from the Red Sea off the coasts of Saudi Arabia

51%

Mohamed Z. A., Al-Shehri A. M.

Oceanologia

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2011

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tom 53

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nr 1

The distribution and abundance of dinoflagellate cyst assemblages were investigated in surface sediments from south-western Red sea coasts of Saudi Arabia at six sites during March 2010. A total of 19 taxa of dinoflagellate cysts were identified from all sites. The sampling sites showed a similar cyst assemblage, but they differed in total cyst abundance (3 to 4083 cysts g−1 dry weight). Cyst abundance was strongly correlated with sediment characteristics, the highest numbers being recorded in sediments with large contents of organic carbon, silt and clay. Cyst assemblages were dominated by cysts of potentially toxic species, including Cochlodinium polykrikos, Prorocentrum minimum, Dinophysis acuminata, Alexandrium catenella and Scrippsiella trochoidea. Most cysts germinated successfully at different rates at 15 and 25◦C. This study suggests that surface sediments from all Saudi Red Sea coasts should be monitored for the presence of dinoflagellate cysts to give ample warning of the presence and abundance of toxic species in a given area.

Ograniczanie wyników

Mercury in surface sediments associated with shipyard activity in the city of Gdansk

Mineralogical and chemical composition of the mud fraction from the surface sediments of Sharm Al-Kharrar, a Red Sea coastal lagoon

Microzooplankton in a warming Arctic: a comparison of tintinnids and radiolarians from summer 2011 and 2012 in the Chukchi Sea

Spatial distribution of biological and physical sediment parameters in the Western Gulf of Gdansk

Persistent organic pollutants [POPs] and polycyclic aromatic hydrocarbons [PAHs] in surface sediments from selected fjords, tidal plains and lakes of the North Spitsbergen

Distribution of metals and extent of contamination in sediments from the South-Eastern Baltic Sea (Lithuanian zone)

Comparison of the burial rate estimation methods of organic and inorganic carbon and quantification of carbon burial in two high Arctic fjords

Geochemical fractionation of heavy metals in sediments of the Red Sea, Saudi Arabia

Horizontal and vertical distribution of lignin in surface sediments of the Gdańsk Basin

Heavy metals in the Baltic surface sediments

Transport of the river load from the Bladzikowski Stream to the Puck Lagoon (Southern Baltic Sea, Poland)

Carbon and nitrogen content and degradation ratio of suspended matter and surface sediments of the Gulf of Gdansk in spring 1995

Occurrence and germination of dinoflagellate cysts in surface sediments from the Red Sea off the coasts of Saudi Arabia