title: Estimates of (239+240)Pu inventories in Gdańsk Bay and Gdańsk basin.
abstract: This paper presents and discusses the results of (239+240)Pu determinations in different components of Gdańsk bay and Gdańsk basin ecosystem, as well as estimated sources and inventories of plutonium in these basins. The total plutonium (239+240)Pu activities deposited in Gdańsk bay and Gdańsk basin sediments are 1.18 TBq and 3.77 TBq, respectively. Two rivers, the Vistula and Neman rivers, and atmospheric fallout were distinguished as the main sources of plutonium in these basins. In seawater (with suspended matter included) there is about 2.33 GBq (239+240)Pu (0.2% of total activity) in Gdańsk bay and 9.92 GBq (239+240)Pu (0.3% of total activity) in Gdańsk basin. In both cases, 56% of (239+240)Pu is associated with suspended matter. Organisms contain 3.81 MBq in Gdańsk bay and 7.45 MBq (239+240)Pu in Gdańsk basin. From this value in Gdańsk bay 82.1% of plutonium is associated with zoobenthos, 13.6% with phytobenthos, 1.6% with phytoplankton, 1.5% with zooplankton and 1.2% with fish. In Gdańsk basin, 83.2% is associated with zoobenthos, 7.5% with phytobenthos, 3.6% with phytoplankton, 3.2% with zooplankton and 2.5% with fish.
authors.affiliation: University of Gdańsk, Faculty of Chemistry, 18/19 Sobieskiego, Gdańsk 80-952, Poland. bosk@chem.univ.gda.pl
authors.forename: Bogdan
authors.initials: B
authors.lastname: Skwarzec
authors.forename: Dagmara I
authors.initials: DI
authors.lastname: Strumińska
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Prucnal
mesh_terms: D000818:Animals; D017753:Ecosystem; D004784:Environmental Monitoring; D007448:Invertebrates; D010839:Phytoplankton; D011005:Plutonium / Q000032:analysis*; D011044:Poland; D011847:Radioactive Fallout; D011850:Radioactive Waste; D012623:Seawater / Q000737:chemistry; D014018:Tissue Distribution; D014875:Water Pollutants, Radioactive / Q000032:analysis*; D015048:Zooplankton
chemical_list: D011847:Radioactive Fallout; D011850:Radioactive Waste; D014875:Water Pollutants, Radioactive; D011005:Plutonium