氘转移分析包括从海水到鲍鱼的食物链。
DEUTERIUM TRANSFER ANALYSIS INCLUDING FOOD CHAIN FROM SEAWATER INTO ABALONE.
机构信息
Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori 039-3212, Japan.
Tokyo Electric Power Company Holdings, Inc. Fukushima Daiichi Decontamination & Decommissioning Engineering Company, Release and Environmental Monitoring Group, 1-1-3 Uchisaiwai-cho, Chiyoda-ku, Tokyo 100-8560, Japan.
出版信息
Radiat Prot Dosimetry. 2022 Sep 9;198(13-15):1125-1130. doi: 10.1093/rpd/ncac072.
Tritium is released into the ocean from nuclear facilities located at coastal areas. In addition, tritiated water is decided to be released into the ocean from the Fukushima Dai-ichi Nuclear Power Plant. Although released tritium concentration would be strictly controlled, impact of tritium on the marine products is major concern for the public. In this study, deuterium transfers from seawater into seaweed (ulva) and abalone were measured. In addition, organically bound deuterium (OBD) transfer from ulva into abalone was measured. OBD concentrations in ulva were saturated in 2 weeks and those in abalone were saturated in 6 months. Ulva and abalone were exposed to seawater containing 0.2% (mol-D/mol-H) deuterium. Maximum OBD concentrations in ulva were ~0.1% (mol-D/mol-H) and those in abalone muscle were ~0.035% (mol-D/mol-H). Numerical deuterium transfer model was constructed. Obtained numerical model well represented the OBD-enriched ulva feeding experiment.
氚从位于沿海地区的核设施释放到海洋中。此外，福岛第一核电站决定将氚化水释放到海洋中。尽管释放的氚浓度将受到严格控制，但公众仍对氚对海产品的影响表示担忧。在这项研究中，测量了氘从海水中转移到海藻（石莼）和鲍鱼中的情况。此外，还测量了从石莼转移到鲍鱼中的有机结合氘（OBD）。海藻中的 OBD 浓度在 2 周内达到饱和，而鲍鱼中的 OBD 浓度在 6 个月内达到饱和。海藻和鲍鱼暴露于含有 0.2%（摩尔-D/摩尔-H）氘的海水中。海藻中的最大 OBD 浓度约为 0.1%（摩尔-D/摩尔-H），鲍鱼肌肉中的 OBD 浓度约为 0.035%（摩尔-D/摩尔-H）。构建了数值氚转移模型。所得数值模型很好地表示了富含 OBD 的石莼喂养实验。
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