Environmental Sciences Department, Kuwait Institute for Scientific Research, Kuwait.
Environmental Sciences Department, Kuwait Institute for Scientific Research, Kuwait.
Ecotoxicol Environ Saf. 2014 Jun;104:132-5. doi: 10.1016/j.ecoenv.2014.02.023. Epub 2014 Mar 25.
This study sets the baseline for the concentration of the natural-series radionuclide polonium-210 in two species of gastropods and four species of bivalves that are common to the Northern Arabian/Persian Gulf. (210)Po is primarily absorbed from water and via ingestion of detrital material by gastropoda and bivalves. This concentrated (210)Po can then be passed along to the next trophic level of the marine food web. The lowest (210)Po concentration was measured in the gastropod Stomatella auricular (10.36-12.39Bq kg(-1)dry) and the highest in the bivalve Marica marmorata (193.51-215.60Bq kg(-1)dry). The measured concentration factor for these molluscs in the northern Gulf varied between 4.8 and 115×10(3), values very similar to the IAEA recommended value for bivalves and gastropods of 2×10(4).
本研究建立了北阿拉伯/波斯湾两种腹足纲软体动物和四种双壳纲软体动物中天然放射性核素钋-210 浓度的基线。(210)Po 主要通过水和腹足纲和双壳纲通过吞食碎屑物质从水中吸收。这种浓缩的(210)Po 然后可以传递到海洋食物网的下一个营养级。在腹足纲软体动物 Stomatella auricular 中测量到的(210)Po 浓度最低（10.36-12.39Bq kg(-1)干重），在双壳纲软体动物 Marica marmorata 中测量到的(210)Po 浓度最高（193.51-215.60Bq kg(-1)干重）。在北阿拉伯湾，这些贝类的测量浓缩因子在 4.8 到 115×10(3)之间变化，与 IAEA 建议的双壳纲和腹足纲贝类的 2×10(4)值非常相似。
