Alrefae Tareq
*Department of Physics, Faculty of Science, Kuwait University, Khaldia, Kuwait; †Center for Research in Environmental Radiation, Faculty of Science, Kuwait University, Khaldia, Kuwait.
Health Phys. 2015 May;108(5):547-50. doi: 10.1097/HP.0000000000000260.
An investigation of long-lived gamma emitting radionuclides in palm dates was performed. The palm date samples originated from eight countries, namely India, Iran, Jordan, Libya, Pakistan, Saudi Arabia, Tunisia, and the United Arab Emirates. Among the samples were the palm date types Sukari, Wanana, Umkhuber, Rashudiya, Libana, Madjool, Gumaizi, Anbar, Braim, Ajwa, Khadri, Munafee, Mabroom, Daglanoor, Sulag, and Khalas. Gamma spectrometry revealed activity concentrations of (AVG ± STD) 0.983 ± 0.457, 0.469 ± 0.229, and 287.078 ± 41.871 Bq kg(-1) dry weight for 226Ra, 228Ra, and 40K, respectively. Annual average effective dose was estimated to be 32 μSv from the consumption of palm dates. Comparing these findings with values reported in the literature, it was concluded that consumption of palm dates is safe for the presence of the investigated radionuclides.
对海枣中长寿命γ发射放射性核素进行了调查。海枣样本来自八个国家，即印度、伊朗、约旦、利比亚、巴基斯坦、沙特阿拉伯、突尼斯和阿拉伯联合酋长国。样本中有苏卡里、瓦纳纳、乌姆胡伯、拉舒迪亚、利巴纳、马朱尔、古迈齐、安巴尔、布雷姆、阿杰瓦、哈德里、穆纳费、马布鲁姆、达格拉努尔、苏拉克和哈拉斯等海枣品种。γ能谱分析显示，226Ra、228Ra和40K的活度浓度（平均值±标准差）分别为0.983±0.457、0.469±0.229和287.078±41.871 Bq kg(-1)干重。据估计，食用海枣的年平均有效剂量为32 μSv。将这些结果与文献报道的值进行比较后得出结论，就所调查的放射性核素而言，食用海枣是安全的。
