title: Radioactivity levels in mussels and sediments of the Golden Horn by the Bosphorus Strait, Marmara Sea.
abstract: The Golden Horn is an estuary located in the center of İstanbul receiving freshwater discharges from two creeks and connecting to the Bosphorus Strait. Activity concentrations of natural and artificial radionuclides were determined in mussels (Mytilus galloprovincialis) and sediments from the Golden Horn sampled in February 2012. Mean activity concentrations of (137)Cs, (40)K, (226)Ra, (228)Ra, (210)Po and (210)Pb in the mussels were determined at 1.03±0.23, 389±41.6, 2.61±1.23, not detected (ND), 91.96±37.88 and 11.48±4.85 Bq kg(-1), respectively. In sediments, it was observed that (137)Cs, (40)K, (226)Ra, (228)Ra, (210)Po and (210)Pb activity concentrations in<63 μm particle fraction of sediment were generally higher than those determined in mussels. Po-210 and (210)Po/(210)Pb ratios in mussels from the Golden Horn were much lower than in mussels from other coastal regions and this was related to low plankton productivity and eutrophication of the Golden Horn.
authors.affiliation: Department of Biology, Faculty of Science, Istanbul University, Vezneciler, 34134 Istanbul, Turkey. Electronic address: kilic_onder@yahoo.com.
authors.forename: Önder
authors.initials: Ö
authors.lastname: Kılıç
authors.affiliation: Department of Biology, Faculty of Science, Istanbul University, Vezneciler, 34134 Istanbul, Turkey.
authors.forename: Murat
authors.initials: M
authors.lastname: Belivermiş
authors.affiliation: Department of Biology, Faculty of Science, Istanbul University, Vezneciler, 34134 Istanbul, Turkey.
authors.forename: Furkan
authors.initials: F
authors.lastname: Gözel
authors.affiliation: Laboratório de Protecção e Segurança Radiológica, Instituto Superior Técnico/Universidade de Lisboa, Estrada Nacional 10, km 139, 2695-066 Bobadela LRS, Portugal.
authors.forename: Fernando P
authors.initials: FP
authors.lastname: Carvalho
mesh_terms: D000818:Animals; D002588:Cesium Radioisotopes / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods; D019015:Geologic Sediments / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007856:Lead Radioisotopes / Q000032:analysis; D008522:Mediterranean Sea; D049878:Mytilus / Q000737:chemistry*; D010316:Particle Size; D011059:Polonium / Q000032:analysis; D011851:Radioactivity; D011883:Radium / Q000032:analysis; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D007856:Lead Radioisotopes; D014875:Water Pollutants, Radioactive; D011059:Polonium; D011883:Radium
keywords: (137)Cs; (210)Po; Golden Horn; Mytilus galloprovincialis; Sediment