Vol. 3, 2018

Original research papers

Radioecology

URANIUM IN FOODSTUFF SAMPLES FROM TWO REGIONS IN BULGARIA WITH RELATIVELY HIGH LOCAL LEVELS OF RADIOACTIVE BACKGROUND

Radoslava Lazarova, Ivanka Yordanova, Donka Staneva

Pages: 94–97

DOI: 10.21175/RadProc.2018.20

Bulgaria is a country which developed uranium (U) mining in the past. In the present study U content in different foodstuffs was determined in answer to public concern of possible radiological risk raised by relatively high U concentration measured in drinking waters in the regions of Haskovo and Plovdiv. Around them uranium mining was carried out on a large scale in the past (around Haskovo under the classical mining method and around Plovdiv under the method of geotechnological drilling). Vegetable (alfalfa, carrots, potatoes and tomato paste) and animal (milk and minced meat) samples were studied and radioactivity concentration (Bq.kg-1) of two natural U isotopes was determined in the following intervals: U-234 –0.004 – 1.00 and U-238 –0.004 – 0.76. Calculated natural U concentration (mg/kg) was 0.0010 – 0.0712. Results were comparable with data cited in literature for U content in foodstuffs from former U mining regions in Europe and considered not radiologically hazardous to the population.

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