Spatial and temporal variability of 210Po and 210Pb in mussels ( Mytilus galloprovincialis) at the Turkish coast of the Aegean Sea

• Published in: Chemosphere (Oxford) 2011-05, Vol.83 (8), p.1102-1107
• Main Authors: Uğur, Aysun, Özden, Banu, Filizok, Işık
• Format: Article
• Language: English
• Subjects: 210Pb; 210Po; Aegean Sea; Analysis of Variance; Animal, plant and microbial ecology; Animals; Applied ecology; Biological and medical sciences; Biomonitoring; Coastal environments; Ecotoxicology, biological effects of pollution; Fundamental and applied biological sciences. Psychology; General aspects; Invertebrates; Lead Radioisotopes - analysis; Marine; Marine organism; Mediterranean Sea; Mollusca; Mussel; Mussels; Mytilus - chemistry; Polonium - analysis; Radioactivity; Seasons; Shells; Stations; Temporal logic; Turkey; Unity; Winter
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2011.01.032

► 210Po and 210Pb levels in mussels ( Mytilus galloprovincialis) were investigated seasonally and geographically along the Turkish coast of the Aegean Sea. ► Measurements of 210Po and 210Pb were carried out in mussels at several points along the coast during a period of two years (2004–2006) and contribute significantly to the database for these radionuclides in this region. ► 210Po/ 210Pb ratios are determined to be much higher than unity in all samples analyzed in our study. In this study, the activity concentrations of 210Po and 210Pb were determined in mussel samples ( Mytilus galloprovincialis) collected from the Turkish coast of the Aegean Sea. The samples were collected seasonally for a period of two years (2004–2006) at six coastal stations (Çanakkale, Dikili, Foça, Çeşme, Didim, Bodrum). Mussels were separated into several groups according to their size (1–4, 4–6, >6 cm). The results showed that 210Po concentrations in mussels varied between 53 ± 4 and 1960 ± 60 Bq kg −1 dw. The highest activity 210Po concentrations were determined in winter samples of mussels with a shell length of 4–6 cm from Didim. In general, it was observed that the 210Pb concentration levels in mussels were lower than 210Po concentrations. The 210Po/ 210Pb activity concentration ratios exceeded unity for all mussel samples and averaged 26.0. The inter-site differences seen in 210Po concentrations can be due to both the natural background levels of sites and industrial activities.