Roselli Carla, Desideri Donatella, Cantaluppi Chiara, Ceccotto Federica, Feduzi Laura, Meli Maria Assunta
a Biomolecular Sciences Department , Urbino University Carlo Bo Urbino , Urbino , Italy.
b CNR - Institute of Inorganic Chemistry and Surfaces , Padova , Italy.
J Toxicol Environ Health A. 2017;80(6):374-381. doi: 10.1080/15287394.2017.1329103. Epub 2017 Jun 23.
The aim of this study was to determine the background activity concentration of natural radionuclides and Cesium (Cs) in meat of 14 migratory birds originating from central and northern Europe. This meat is largely consumed by the Italian population. K, Pb, and Cs were determined by gamma spectrometry and Po by alpha spectrometry. The mean K activity concentration detected was 490 ± 117 Bq/kg. In all the samples, Pb was below the limit of detection (LOD), and therefore it was not possible to calculate the ratio Po/Pb. The Po activity concentration ranged between 0.11 ± 0.02 Bq/kg and 6.2 ± 0.93 Bq/kg with a mean value of 1.03 ± 1.75 Bq/kg. The Cs activity concentration was not detectable or near LOD except in two samples with 45 ± 0.7 Bq/kg (wood pigeon, from Italy) and 139.1 ± 1.9 Bq/kg (woodcock, from Sweden). The effective dose of Po ingested by consumption of wild birds meat accounts for only 0.01-0.6% of natural radiation exposure in Italy. These data indicate that the meat analyzed was safe.
本研究的目的是测定14种原产于欧洲中部和北部的候鸟肉中天然放射性核素和铯（Cs）的本底活度浓度。意大利人大量食用这种肉。通过γ能谱法测定钾、铅和铯，通过α能谱法测定钋。检测到的钾平均活度浓度为490±117 Bq/kg。在所有样品中，铅低于检测限（LOD），因此无法计算钋/铅比值。钋活度浓度在0.11±0.02 Bq/kg至6.2±0.93 Bq/kg之间，平均值为1.03±1.75 Bq/kg。除了两个样品（来自意大利的斑尾林鸽，活度浓度为45±0.7 Bq/kg；来自瑞典的丘鹬，活度浓度为139.1±1.9 Bq/kg）外，铯活度浓度不可检测或接近检测限。食用野鸟肉摄入的钋有效剂量仅占意大利天然辐射暴露的0.01 - 0.6%。这些数据表明所分析的肉是安全的。
