title: On variations of volumetric activity of90Sr and137Cs in the Baltic Sea coastal waters near the shore of Lithuania in 2005-2009.
abstract: The article presents the measurement results of the volumetric activity (VA) of artificial radionuclides90Sr and137Cs in the coastal waters of the Baltic Sea near the Curonian Peninsula in 2005-2009. The annual average values for this period of time were 12 Bq/m3(90Sr) and 40 Bq/m3(137Cs). Considerable variations in the VA of the radionuclide in individual measurements compared to the average results were observed. The extreme values were 6 and 16 Bq/m3for90Sr and for137Cs-27 and 75 Bq/m3. It is proposed to allow such variations under the influence of a variety of external factors such as hydro meteorological situations, inflowing rivers and bays, storm activity and etc. Besides, a possibility of penetration of radionuclides into the sea waters from the additional radioactive sources is not excluded.
authors.affiliation: Vilnius Gediminas Technical University, Saulėtekio Ave 11, LT-10223 Vilnius, Lithuania.
authors.forename: D
authors.initials: D
authors.lastname: Styro
authors.affiliation: Vilnius Gediminas Technical University, Saulėtekio Ave 11, LT-10223 Vilnius, Lithuania.
authors.forename: R
authors.initials: R
authors.lastname: Morkūnienė
authors.affiliation: Vilnius Gediminas Technical University, Saulėtekio Ave 11, LT-10223 Vilnius, Lithuania.
authors.forename: A
authors.initials: A
authors.lastname: Daunaravičienė
keywords: Artificial radionuclides; Baltic Sea; Coastal waters; Hydro meteorological situations; Volumetric activity