Skwarzec Bogdan, Strumińska Dagmara I, Prucnal Małgorzata
University of Gdańsk, Faculty of Chemistry, 18/19 Sobieskiego, Gdańsk 80-952, Poland.
J Environ Radioact. 2003;70(3):237-52. doi: 10.1016/S0265-931X(03)00107-3.
This paper presents and discusses the results of (239+240)Pu determinations in different components of Gdańsk bay and Gdańsk basin ecosystem, as well as estimated sources and inventories of plutonium in these basins. The total plutonium (239+240)Pu activities deposited in Gdańsk bay and Gdańsk basin sediments are 1.18 TBq and 3.77 TBq, respectively. Two rivers, the Vistula and Neman rivers, and atmospheric fallout were distinguished as the main sources of plutonium in these basins. In seawater (with suspended matter included) there is about 2.33 GBq (239+240)Pu (0.2% of total activity) in Gdańsk bay and 9.92 GBq (239+240)Pu (0.3% of total activity) in Gdańsk basin. In both cases, 56% of (239+240)Pu is associated with suspended matter. Organisms contain 3.81 MBq in Gdańsk bay and 7.45 MBq (239+240)Pu in Gdańsk basin. From this value in Gdańsk bay 82.1% of plutonium is associated with zoobenthos, 13.6% with phytobenthos, 1.6% with phytoplankton, 1.5% with zooplankton and 1.2% with fish. In Gdańsk basin, 83.2% is associated with zoobenthos, 7.5% with phytobenthos, 3.6% with phytoplankton, 3.2% with zooplankton and 2.5% with fish.
本文展示并讨论了格但斯克湾和格但斯克盆地生态系统不同组成部分中钚（²³⁹ + ²⁴⁰）Pu的测定结果，以及这些盆地中钚的估计来源和存量。沉积在格但斯克湾和格但斯克盆地沉积物中的总钚（²³⁹ + ²⁴⁰）Pu活度分别为1.18太贝克勒尔和3.77太贝克勒尔。维斯瓦河和涅曼河这两条河流以及大气沉降被确定为这些盆地中钚的主要来源。在海水中（包括悬浮物），格但斯克湾约有2.33吉贝克勒尔（²³⁹ + ²⁴⁰）Pu（占总活度的0.2%），格但斯克盆地有9.92吉贝克勒尔（²³⁹ + ²⁴⁰）Pu（占总活度的0.3%）。在这两种情况下，56%的（²³⁹ + ²⁴⁰）Pu与悬浮物相关。生物体中，格但斯克湾含有3.81兆贝克勒尔，格但斯克盆地含有7.45兆贝克勒尔（²³⁹ + ²⁴⁰）Pu。在格但斯克湾，从这个数值来看，82.1%的钚与底栖动物有关，13.6%与底栖植物有关，1.6%与浮游植物有关，1.5%与浮游动物有关，1.2%与鱼类有关。在格但斯克盆地，83.2%与底栖动物有关，7.5%与底栖植物有关，3.6%与浮游植物有关，3.2%与浮游动物有关，2.5%与鱼类有关。
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