Jones David G, Kershaw Peter J, McMahon Ciara A, Milodowski Antoni E, Murray Michael, Hunt G John
British Geological Survey (BGS), Keyworth, Nottingham NG12 5GG, UK.
J Environ Radioact. 2007;96(1-3):63-74. doi: 10.1016/j.jenvrad.2007.01.027. Epub 2007 May 18.
This paper presents new data on the distribution of long-lived radionuclides in Irish Sea subtidal sediments, contaminated as a result of the BNFL Sellafield discharges. The results from different sampling campaigns in 1999 have been combined to assess the extent of radionuclide mobility relative to earlier surveys, in both the eastern and western Irish Sea areas, and to investigate changes in radionuclide distribution over time. The results appear to confirm the trend of continuing re-distribution and transfer of contamination away from the English coast. West of the Isle of Man, radionuclide concentrations and inventories have remained more or less constant. The inventory of radionuclides in sandy sediments in the eastern Irish Sea is still under-represented by current sampling, but could be improved by deeper and more extensive vibrocoring.
本文展示了有关爱尔兰海潮下带沉积物中长寿命放射性核素分布的新数据，这些沉积物因英国核燃料公司（BNFL）塞拉菲尔德排放而受到污染。1999年不同采样活动的结果已合并起来，以评估相对于早期调查，爱尔兰海东部和西部区域放射性核素的迁移程度，并研究放射性核素分布随时间的变化。结果似乎证实了污染继续从英国海岸重新分布和转移的趋势。在马恩岛以西，放射性核素浓度和存量大致保持不变。目前的采样仍未充分体现爱尔兰海东部沙质沉积物中放射性核素的存量，但通过更深层、更广泛的振动取芯可能会有所改善。
