Pempkowiak J, Cossa D, Sikora A, Sanjuan J
Department of Marine Chemistry and Biochemistry, Institute of Oceanology, Sopot, Poland.
Sci Total Environ. 1998 Jun 10;213(1-3):185-92. doi: 10.1016/s0048-9697(98)00091-6.
Total mercury concentrations [HgT] were measured in samples of water and sediments collected from the southern Baltic Sea from the period 1993-1995. Picomolar concentrations of HgT were found in offshore surface water. Higher levels were measured in samples from the plum of the Vistula. An exceptionally high concentration of mercury (25 pM HgT, 5 pM methylmercury) was measured in the near bottom, quasi-anoxic water of the Gdañsk Deep and explained by the release of mercury from fine grained sediments covering the bottom. In the sediments, the largest contents of HgT were found in fine grained, organic rich deposits of the Baltic deeps. The increase in mercury contents in the upper layers of sediments deposited within the last 100-150 years was attributed to the anthropogenic load of mercury and its increased scavenging to sediments with organic matter.
对1993年至1995年期间从波罗的海南部采集的水和沉积物样本中的总汞浓度[HgT]进行了测量。在近海表层水中发现了皮摩尔浓度的HgT。在维斯瓦河河口的样本中测得的浓度更高。在格但斯克湾近底部的准缺氧水中测得异常高浓度的汞（25 pM HgT，5 pM甲基汞），这是由于覆盖底部的细颗粒沉积物释放汞所致。在沉积物中，HgT含量最高的是波罗的海深处细颗粒、富含有机物的沉积物。过去100至150年内沉积的沉积物上层汞含量的增加归因于汞的人为负荷及其随有机物对沉积物的清除增加。
