Vaupotic Janja, Gregoric Asta, Kotnik Joze, Horvat Milena, Pirrone Nicola
Department of Environmental Sciences, Jozef Stefan Institute, Ljubljana, Slovenia.
J Environ Radioact. 2008 Jul;99(7):1068-74. doi: 10.1016/j.jenvrad.2007.12.023. Epub 2008 Feb 13.
Vertical profiles of radioactive radon gas ((222)Rn) and dissolved gaseous mercury (DGM) in seawater in the Mediterranean Basin have been measured. They were found in the range 1.7-19.3 Bq m(-3) and 22-200 ng m(-3), respectively, at the bottom and 2.0-20.0 Bq m(-3) and 6-80 ng m(-3), respectively, at the surface. Preliminary results indicate a positive correlation between concentrations of both gases at some locations, but not at others. Further analyses will be performed, after (226)Ra contents in sediment and water have been determined, taking into account environmental parameters such as air and water temperatures, barometric pressure and water flow, in order to better interpret these profiles.
已对地中海盆地海水中放射性氡气((222)Rn)和溶解态气态汞(DGM)的垂直剖面进行了测量。在底部,它们的浓度分别在1.7 - 19.3 Bq m(-3)和22 - 200 ng m(-3)范围内,而在海面则分别为2.0 - 20.0 Bq m(-3)和6 - 80 ng m(-3)。初步结果表明,在某些位置两种气体的浓度呈正相关,但在其他位置并非如此。在确定沉积物和水中的(226)Ra含量后,将进一步进行分析,并考虑诸如气温和水温、气压以及水流等环境参数,以便更好地解释这些剖面。