title: Cesium and strontium in Black Sea macroalgae.
abstract: The trace level of metals and particularly radioactive ones should be monitored to evaluate the transfer along the trophic chain, assess the risk for biota and can be used for global changes assessment. Plants respond rapidly to all changes in the ecosystem conditions and are widely used as indicators and predictors for changes in hydrology and geology. In this work we represent our successful development and applications of a methodology for monitoring of stable and radioactive strontium and cesium in marine biota (Black Sea algae's). In case of radioactive release they are of high interest. We use ED-XRF, gamma spectrometers and LSC instrumentation and only 0.25 g sample. Obtained results are compared with those of other authors in same regions. The novelty is the connection between the radioactive isotopes and their stable elements in algae in time and space scale. All our samples were collected from Bulgarian Black Sea coast.
authors.affiliation: Radiochemistry and Radioecology Department, Institute for Nuclear Research and Nuclear Energy, 72 Tzarigradsko Chaussee, Sofia 1784, Bulgaria. Electronic address: nonova@inrne.bas.bg.
authors.forename: Tzvetana
authors.initials: T
authors.lastname: Nonova
authors.affiliation: Faculty of Science, Technology and Communication, University of Luxembourg, 162 a av. de la Faïencerie, 1511 Luxembourg, Luxembourg. Electronic address: zornitza.tosheva@uni.lu.
authors.forename: Zornitza
authors.initials: Z
authors.lastname: Tosheva
mesh_terms: D059038:Black Sea; D002587:Cesium Isotopes; D000460:Chlorophyta / Q000737:chemistry*; D000459:Phaeophyceae / Q000737:chemistry*; D011834:Radiation Monitoring; D000461:Rhodophyta / Q000737:chemistry*; D012624:Seaweed / Q000737:chemistry*; D013325:Strontium Isotopes; D014873:Water Pollutants; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002587:Cesium Isotopes; D013325:Strontium Isotopes; D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D014875:Water Pollutants, Radioactive
keywords: Black Sea; Cesium; Macroalgae; Radiochemical separation; Strontium