Activity concentrations of 210Po, 210Pb, and 40K were measured in different samples of marine organisms from the central Adriatic Sea. The marine organisms were purchased from the local consumer market during the four seasons of the year, to evaluate the spatial and temporal distribution of the natural radioactivity. The concentration trend is the following: 40K > 210Po > 210Pb. 40K concentration ranged between 54.9 and 235.9 Bq kg-1 fresh weight, 210Pb concentration arithmetical mean for all samples is < 0.7 Bq kg-1 fresh weight. 210Po activity concentration ranged between 0.3 and 44.6 Bq kg-1 fresh weight; its arithmetic mean was 5.7±7.2 Bq kg-1 fresh weight. Among the pelagic species, anchovy displayed the highest polonium concentration. The data obtained depend upon the type of the marine organism and the period of the sampling. Committed effective dose due to 210Po ingestion from marine food for the individual of two different population groups was calculated to be 95.9 and 466.4 microSv y-1 respectively.

Natural radionuclides in seafood from the Central Adriatic Sea (Italy)

DESIDERI, DONATELLA;MELI, MARIA ASSUNTA;ROSELLI, CARLA
2011-01-01

Abstract

Activity concentrations of 210Po, 210Pb, and 40K were measured in different samples of marine organisms from the central Adriatic Sea. The marine organisms were purchased from the local consumer market during the four seasons of the year, to evaluate the spatial and temporal distribution of the natural radioactivity. The concentration trend is the following: 40K > 210Po > 210Pb. 40K concentration ranged between 54.9 and 235.9 Bq kg-1 fresh weight, 210Pb concentration arithmetical mean for all samples is < 0.7 Bq kg-1 fresh weight. 210Po activity concentration ranged between 0.3 and 44.6 Bq kg-1 fresh weight; its arithmetic mean was 5.7±7.2 Bq kg-1 fresh weight. Among the pelagic species, anchovy displayed the highest polonium concentration. The data obtained depend upon the type of the marine organism and the period of the sampling. Committed effective dose due to 210Po ingestion from marine food for the individual of two different population groups was calculated to be 95.9 and 466.4 microSv y-1 respectively.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11576/2506793
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