title: Spatiotemporal variations of the ⁹⁰Sr in the southern part of the Baltic Sea over the period of 2005-2010.
abstract: The Baltic Sea is one of the most contaminated seas by the radioactive isotope of strontium in the world; therefore the activity of ⁹⁰Sr is regularly controlled. Due to that fact, seawater samples for ⁹⁰Sr determination were collected at 16 stations located in the southern Baltic Sea between 2005 and 2010. In this period average activity of ⁹⁰Sr was 7.8 Bq m⁻³ and varied within the range from 3.0 Bq m⁻³ to 11.9 Bq m⁻³. Because the higher activity of ⁹⁰Sr was measured in the Baltic Sea than in the North Sea and rivers, inflows from the North Sea and the riverine runoff decreased ⁹⁰Sr activity in the Baltic Sea. The average ⁹⁰Sr activity in the bottom water along the offshore profile was 18% lower than that in the surface water and it was caused by an inflow of salt water from the North Sea. In the Vistula River mouth the average activity of ⁹⁰Sr in the surface water was about 15% lower than the average activity in the bottom waters. Coastal areas, relatively shallow with good mixing condition in the water column, were characterized by low variability in ⁹⁰Sr activity.
authors: Institute of Meteorology and Water Management, National Research Institute, Maritime Branch, Waszyngtona 42, 81-342 Gdynia, Poland.
authors: Michał
authors: M
authors: Saniewski
mesh_terms: D009792:Oceans and Seas; D012623:Seawater / Q000032:analysis*; D013324:Strontium / Q000032:analysis*; D013325:Strontium Isotopes / Q000032:analysis; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D013325:Strontium Isotopes; D014875:Water Pollutants, Radioactive; D013324:Strontium