Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem
The radioisotopes of caesium ( 137 Cs) and strontium ( 90 Sr) make the greatestcontribution to the radioactivity level due to artificial radionuclides in the BalticSea, where the level of 137 Cs contamination is higher than in any otherpart of the world ocean. The main sources of man-made radionucli...
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ftdoajarticles:oai:doaj.org/article:ffba938d01e84b8f895f6bd5a31123cf 2023-05-15T16:19:21+02:00 Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem Tamara Zalewska Maria Suplińska 2013-08-01T00:00:00Z https://doi.org/10.5697/oc.55-3.485 https://doaj.org/article/ffba938d01e84b8f895f6bd5a31123cf EN eng Elsevier http://www.iopan.gda.pl/oceanologia/55_3.html#A1 https://doaj.org/toc/0078-3234 http:/dx.doi.org/10.5697/oc.55-3.485 0078-3234 https://doaj.org/article/ffba938d01e84b8f895f6bd5a31123cf Oceanologia, Vol 55, Iss 3, Pp 485-517 (2013) 137 Cs 90 Sr Southern Baltic Oceanography GC1-1581 article 2013 ftdoajarticles https://doi.org/10.5697/oc.55-3.485 2022-12-31T04:32:56Z The radioisotopes of caesium ( 137 Cs) and strontium ( 90 Sr) make the greatestcontribution to the radioactivity level due to artificial radionuclides in the BalticSea, where the level of 137 Cs contamination is higher than in any otherpart of the world ocean. The main sources of man-made radionuclides are the Chernobylaccident in 1986 and the nuclear weapons tests carried out in the 1950s and 1960s.This study discusses the distribution patterns and trends in activity concentrationsof 137 Cs and 90 Sr recorded in various compartments of the marineenvironment of the southern Baltic Sea. It is based on an investigation of radioactivesubstances as part of the Polish National Environmental Monitoring Programme.In 2010 the average concentration of 137 Cs in the southern Baltic was35 Bq m -3 , while the level of 90 Sr in these waters has remained at much the same levelin recent years (ca 8 Bq m -3 ). The distribution of isotopes in the bottomsediments reflect historical events that can be identified in sedimentprofiles. The activity concentrations of the caesium isotope are the highestin sediments from the Gulf of Gdansk, whereas the least polluted sedimentsare found in the Bornholm Basin, in the western part of the southern Baltic.The highest concentrations of 137 Cs in benthic plants were measured in the red alga Polysiphonia fucoides : 22.3 Bq kg -1 d.w. in June and 40.4 Bq kg -1 in September. These levels were much higher than those found in the bivalve Mytilus trossulus (7.3 Bq kg -1 d.w.). 137 Cs concentrations in fish have decreased in time, reflecting the trends recordedin seawater. In 2010 the respective 137 Cs activities in Clupea harengus, Platichthys flesus and Gadus morhua were 4.7, 4.9 and 6.6 Bq kg -1 w.w. Article in Journal/Newspaper Gadus morhua Directory of Open Access Journals: DOAJ Articles Oceanologia 55 3 485 517 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
137 Cs 90 Sr Southern Baltic Oceanography GC1-1581 |
spellingShingle |
137 Cs 90 Sr Southern Baltic Oceanography GC1-1581 Tamara Zalewska Maria Suplińska Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem |
topic_facet |
137 Cs 90 Sr Southern Baltic Oceanography GC1-1581 |
description |
The radioisotopes of caesium ( 137 Cs) and strontium ( 90 Sr) make the greatestcontribution to the radioactivity level due to artificial radionuclides in the BalticSea, where the level of 137 Cs contamination is higher than in any otherpart of the world ocean. The main sources of man-made radionuclides are the Chernobylaccident in 1986 and the nuclear weapons tests carried out in the 1950s and 1960s.This study discusses the distribution patterns and trends in activity concentrationsof 137 Cs and 90 Sr recorded in various compartments of the marineenvironment of the southern Baltic Sea. It is based on an investigation of radioactivesubstances as part of the Polish National Environmental Monitoring Programme.In 2010 the average concentration of 137 Cs in the southern Baltic was35 Bq m -3 , while the level of 90 Sr in these waters has remained at much the same levelin recent years (ca 8 Bq m -3 ). The distribution of isotopes in the bottomsediments reflect historical events that can be identified in sedimentprofiles. The activity concentrations of the caesium isotope are the highestin sediments from the Gulf of Gdansk, whereas the least polluted sedimentsare found in the Bornholm Basin, in the western part of the southern Baltic.The highest concentrations of 137 Cs in benthic plants were measured in the red alga Polysiphonia fucoides : 22.3 Bq kg -1 d.w. in June and 40.4 Bq kg -1 in September. These levels were much higher than those found in the bivalve Mytilus trossulus (7.3 Bq kg -1 d.w.). 137 Cs concentrations in fish have decreased in time, reflecting the trends recordedin seawater. In 2010 the respective 137 Cs activities in Clupea harengus, Platichthys flesus and Gadus morhua were 4.7, 4.9 and 6.6 Bq kg -1 w.w. |
format |
Article in Journal/Newspaper |
author |
Tamara Zalewska Maria Suplińska |
author_facet |
Tamara Zalewska Maria Suplińska |
author_sort |
Tamara Zalewska |
title |
Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem |
title_short |
Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem |
title_full |
Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem |
title_fullStr |
Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem |
title_full_unstemmed |
Anthropogenic radionuclides 137Cs and 90Sr in the southern Baltic Sea ecosystem |
title_sort |
anthropogenic radionuclides 137cs and 90sr in the southern baltic sea ecosystem |
publisher |
Elsevier |
publishDate |
2013 |
url |
https://doi.org/10.5697/oc.55-3.485 https://doaj.org/article/ffba938d01e84b8f895f6bd5a31123cf |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Oceanologia, Vol 55, Iss 3, Pp 485-517 (2013) |
op_relation |
http://www.iopan.gda.pl/oceanologia/55_3.html#A1 https://doaj.org/toc/0078-3234 http:/dx.doi.org/10.5697/oc.55-3.485 0078-3234 https://doaj.org/article/ffba938d01e84b8f895f6bd5a31123cf |
op_doi |
https://doi.org/10.5697/oc.55-3.485 |
container_title |
Oceanologia |
container_volume |
55 |
container_issue |
3 |
container_start_page |
485 |
op_container_end_page |
517 |
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1766005729800486912 |