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Evaluation of gross radioactivity in foodstuffs

  • Ö. S. Zorer and Ç. Öter
Published/Copyright: April 24, 2015
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Abstract

The paper presents the results of radiological investigations of food products sampled in the summer and fall of 2011 and 2012 in different parts of Van, Turkey. Gross radioactivity measurements in food products were evaluated. Food items were divided into eight groups: (1) water, (2) fish, (3) cheese products, (4) fruits, (5) vegetables, (6) herbs, (7) walnut and (8) rock salt. The levels of the gross alpha and gross beta radioactivity in all food samples varied widely ranging from 0.070 to 10.885 Bq/g and from 0.132 to 48.285 Bq/g on dry mass basis, respectively. In one sample, gross alpha and gross beta activity concentrations were found to be relatively high according to the other samples and in all samples, the gross alpha radioactivity was measured lower than the gross beta radioactivity. The gross α and gross β activities were measured by using α/β counter of the multi-detector low background system (PIC MPC-9604).

Kurzfassung

Dieser Beitrag stellt die Ergebnisse radioökologischer Untersuchungen von Nahrungsmitteln vor, die 2011–2012 im Sommer und Herbst in den verschiedenen Gebieten von Van in der Türkei durchgeführt wurden. Dabei wurde die Gesamtaktivität in Nahrungsmitteln ausgewertet. Dazu wurden die Nahrungsmittel in 8 Gruppen eingeteilt: (1) Wasser, (2) Fisch, (3) Käseprodukte, (4) Früchte, (5) Gemüse, (6) Kräuter, (7) Walnüsse, (8) Steinsalz. Die Höhe der Gesamt-Alpha- und -Beta-Aktivität aller untersuchten Nahrungsmitttel variiert zwischen 0.070 und 10.885 Bq/g und zwischen 0.132 in 48.285 Bq/g Trockenmasse. In einer Probe wurden im Vergleich zu den anderen Proben relativ hohe Alpha- und Beta-Aktivitätskonzentrationen gefunden und in allen gemessenen Proben lag die Gesamt-Alpha-Aktivität niedriger als die Gesamt-Beta-Aktivität. Die Gesamt-Alpha- und -Beta-Aktivitäten wurden mit Hilfe des Multidetektorsystems (PIC MPC-9604) gemessen.

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Received: 2014-12-29
Published Online: 2015-04-24
Published in Print: 2015-04-28

© 2015, Carl Hanser Verlag, München

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