Dissolved and suspended forms of caesium-137 in marine and riverine environments of the southern Baltic ecosystem

• Autorzy: Knapińska-Skiba D. , Bojanowski R. , Piękoś R.
• Konferencja: Proceedings of the Third National Conference on Radiochemistry and Nuclear Chemistry, 6-9 May 2001, Kazimierz Dolny
• Języki publikacji: EN

Abstrakty

EN

Dissolved and particulate activities of caesium-137 are presented for the coastal and open southern Baltic Sea waters, fluvial waters (the Vistula and Swina rivers) and lagoon waters (the Vistula Lagoon) during 1996-1999 and compared to those collected before the Chernobyl accident. 137Cs was measured in the Baltic Sea waters at different depths as well as 0.2-0.3 m above the sea bed. In a layer of the Gdafsk Bay waters (the Gdafsk Deep location), extending from the surface down to 1-2 meters above the sea bed, the caesium-137 concentrations ranged between 57 and 66 Bq m-3 in 1999, whereas in the layer situated 0.2-0.3 m above the sea bed its concentration increased up to 87 Bq m-3. This phenomenon was also observed in 1994 and 1998. The concentrations of caesium-137 in riverine suspended particulate matter (r SPM) are lower than in the marine SMP (m SMP) and its activity attains respectively 36 and 222 Bq kg-1 based on dry weight. The proportion of caesium-137 in the suspended form in the Baltic Sea waters does not exceed 2 per cent, while in the fluvial suspended form it is as high as 55 per cent.

Słowa kluczowe

EN

Baltic waters; dissolved form; fluvial waters; radiocaesium; suspended form

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2002
• Tom: Vol. 47, nr 2
• Strony: 53--58
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Knapińska-Skiba D.

• Institute of Oceanology, Polish Academy of Sciences, 56 Powstafców Warszawy Str., 81-712 Sopot, Poland, Tel.: [phone], Fax: [phone]

autor

Bojanowski R.

• Institute of Oceanology, Polish Academy of Sciences, 56 Powstafców Warszawy Str., 81-712 Sopot, Poland, Tel.: [phone], Fax: [phone]

autor

Piękoś R.

• Faculty of Pharmacy, Medical University of Gdańsk, 107 Gen. J. Hallera Av., 80-416 Gdańsk, Poland

Bibliografia

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