Bełdowska Magdalena
Institute of Oceanography, University of Gdansk, Av. Piłsudskiego 46, 81-378 Gdynia, Poland.
Water Air Soil Pollut. 2015;226(1):2248. doi: 10.1007/s11270-014-2248-7. Epub 2014 Dec 11.
Despite the decreased emission loads of mercury, historical deposits of this metal in various compartments of the environment may become an additional diffuse source in the future. Global climate change manifests itself in the temperate zone in several ways: warmer winters, shorter icing periods, increased precipitation and heightened frequency of extreme events such as strong gales and floods, all of which cause disturbances in the rate and direction of mercury biogeochemical cycling. The present study was conducted at two sites, Oslonino and Gdynia Orlowo (both in the coastal zone of the Gulf of Gdansk), from which samples were collected once a month between January 2012 and December 2012. In the Southern Baltic region, climate changes can certainly enhance coast to basin fluxes of mercury and the transfer of bioavailable forms of this metal to the food web. They may also, in the future, contribute to uncontrollable increases of mercury in the seawater.
尽管汞的排放负荷有所降低，但这种金属在环境各部分的历史沉积在未来可能会成为一个额外的扩散源。全球气候变化在温带地区有多种表现形式：冬季变暖、结冰期缩短、降水量增加以及强风、洪水等极端事件的频率升高，所有这些都会导致汞生物地球化学循环的速率和方向受到干扰。本研究在奥斯洛尼诺和格但斯克奥洛沃（均位于格但斯克湾沿海地区）两个地点进行，于2012年1月至2012年12月期间每月采集一次样本。在波罗的海南部地区，气候变化肯定会增强汞从海岸到盆地的通量以及这种金属的生物可利用形式向食物网的转移。未来，它们还可能导致海水中汞含量不可控地增加。
