Contamination of the southern Baltic Sea with 137Cs and 90Sr over the period 2000–2004

Zalewska, Tamara; Lipska, J.

doi:10.1016/j.jenvrad.2006.08.001

Cited by 31 publications

(22 citation statements)

References 5 publications

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“…According to data published in Helsinki Commission proceedings (HELCOM, 2013), the total inputs of weapons test 137 Cs and 90 Sr into the Baltic Sea were 800 TBq and 500 TBq, respectively. During a long period of time this sea was contaminated by the North Sea waters where radioactive waste was discharged from various nuclear reprocessing plants (HELCOM, 2009;Zalewska and Lipska, 2006;Saniewski, 2013). The increase of the global fallout proceeded up to 1963, when a treaty concerning nuclear and thermonuclear weapon test stopped in the atmosphere, hydrosphere and cosmos were signed.…”

Section: Review Of Literaturementioning

confidence: 99%

“…The Chernobyl fallout was scattered very unevenly over the Baltic Sea area (Weiss, 2011). The Bothnian Sea and the Gulf of Finland were both regarded as the most contaminated regions of the Baltic (Zalewska and Lipska, 2006). In 1986, the respective average concentrations of 137 Cs in these regions were 480 Bq·m -3 and 500 Bq·m The decrease of activity concentrations of these radionuclides in the coastal waters near Lithuania was observed too (Styro et al, 2012).…”

Section: Review Of Literaturementioning

confidence: 99%

See 1 more Smart Citation

Assessment of the External Exposure Dose to Humans From 137cs and 90sr in the Coastal Waters of the Baltic Sea Near Lithuania

Daunaravičienė¹,

Jasaitis²

2017

Appl Ecol Env Res

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Abstract. At present the Baltic Sea is considered to be the most contaminated with anthropogenic radionuclides in comparison to any other part of the World Ocean. Anthropogenic radionuclides (mainly 137 Cs and 90 Sr) found in the seawater are sources of the external exposure that contributes to the total radiation exposure to humans. The variations of activity concentrations of 137 Cs and 90 Sr in the water of the Baltic Sea near Lithuanian coast in 1985-2013 were analyzed. External exposure dose from these radionuclides to humans due to immersion in the seawater were calculated using the results of the measurements. An average external exposure dose from 137 Cs ranged between 6.28 nSv·h -1 to 1.5 nSv·h -1 , from 90 Sr -between 1.73 nSv·h -1 to 0.53 nSv·h -1 .

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Section: Review Of Literaturementioning

confidence: 99%

Section: Review Of Literaturementioning

confidence: 99%

Assessment of the External Exposure Dose to Humans From 137cs and 90sr in the Coastal Waters of the Baltic Sea Near Lithuania

Daunaravičienė¹,

Jasaitis²

2017

Appl Ecol Env Res

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“…137 Cs activity concentration in seawater samples was measured using two methods. In 2001, the radiochemical method was applied and preparation of samples followed the procedure described in Zalewska & Lipska (2006 Cs activity was determined by gamma spectrometry. In this method, as an initial step, 20 mg Cs + was added to acidified seawater samples as a carrier.…”

Section: Fishmentioning

confidence: 99%

“…The Baltic Sea is still considered the marine area most polluted with 137 Cs (IAEA 2005) and cesium activities in marine matrices in the Baltic Sea are much higher than those of other artificial isotopes (HELCOM 1995(HELCOM , 2003(HELCOM , 2009Zalewska, Lipska 2006, Ikaheimonen et al 2009). The major part of 137 Cs in the Baltic Sea were deposited as a result of the accident at the Chernobyl nuclear power plant in 1986.…”

Section: Introductionmentioning

confidence: 99%

Reference organisms for assessing the impact of ionizing radiation on the environment of the southern Baltic Sea

Zalewska

Suplińska

2012

Oceanological and Hydrobiological Studies

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Assessing the impact of ionizing radiation on the marine environment requires a well-defined methodology, which includes, among other elements, the analysis of exposure and effects. One of the most important components of the assessment system is the choice of reference organisms specific for the assessed area that fulfill requirements such as radioecological sensitivity, widespread distribution, and amenability to research and monitoring. The following species specific to the southern Baltic Sea that represent diversified ecological niches were proposed as reference organisms. Polysiphonia fucoides was proposed as a representative of macroalgae. Pelagic and benthic fauna were represented by Crangon crangon (crustacean), Saduria entomon (crustacean), Hediste diversicolor (polychaete), and Mytilus trossulus (mollusc). Fish were represented by Clupea harengus (pelagic planctotrophic fish), Gadus morhua (pelagic carnivorous fish), and Platichthys flesus (benthic fish). Activity concentrations of 137 Cs were determined in * Corresponding author: tamara.zalewska@imgw.pl reference biota as well as in seawater, as required for the total dose-rate evaluation, and relevant concentration factors were calculated.

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“…At present, the Baltic Sea continues to show the highest level of 137 Cs contamination of any part of the world ocean (HELCOM 2003(HELCOM , 2009WOMARS 2005;Zalewska and Lipska 2006;Ikaheimonen et al 2009). It was estimated that the average concentration of 137 Cs in seawater (representative for the whole Baltic Sea area) was equal to 60 Bq m -3 in 2000 (WOMARS 2005), while in 2004, specifically in the southern Baltic the average activity of 137 Cs was 45 Bq m -3 (Zalewska and Lipska 2006).…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation of 137Cs by benthic plants and macroinvertebrates

Zalewska

Saniewski

2011

Oceanological and Hydrobiological Studies

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Abstract137 Cs activity concentrations were determined in macrophytes and macrozoobenthic organisms from the southern Baltic Sea. Cesium isotope content was analysed in macroalgae species (green, red and brown algae representatives) and in some species of vascular plants. The analyzed macroinvertebrate organisms included bivalves and a crustacean.Concentration factors (CF) were calculated using the determined 137 Cs concentration in the flora and fauna organisms against that in seawater, and the bioaccumulative properties were compared. The study pointed out that the most important factors in the cesium bioaccumulation process occurring in plants are related to morphology. The highest CF values were obtained in algae Polysiphonia fucoides, Ectocarpus siliculosus and Cladophora glomerata. Decidedly lower CF values were observed in the vascular plants and macrozoobenthos representatives.

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Contamination of the southern Baltic Sea with 137Cs and 90Sr over the period 2000–2004

Cited by 31 publications

References 5 publications

Assessment of the External Exposure Dose to Humans From 137cs and 90sr in the Coastal Waters of the Baltic Sea Near Lithuania

Assessment of the External Exposure Dose to Humans From 137cs and 90sr in the Coastal Waters of the Baltic Sea Near Lithuania

Reference organisms for assessing the impact of ionizing radiation on the environment of the southern Baltic Sea

Bioaccumulation of 137Cs by benthic plants and macroinvertebrates

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