Depto. de Geociências, Fundação Universidade Federal do Rio Grande, Rio Grande, RS 96201-900, Brazil.
Environ Monit Assess. 2009 Dec;159(1-4):35-42. doi: 10.1007/s10661-008-0610-1. Epub 2008 Nov 15.
In this study, we measured the mercury concentration in 27 different fish species with high commercial value. Samples were taken from a region characterized by the diversity of aquatic environments. Mercury concentration in marine fish species varied from 30.4 to 216 ng g(-1), while in estuarine species, it varied from 12.4 to 60.3 ng g(-1). Compared to mercury concentration in marine species, none of the specimens from estuarine environment has reached a mercury concentration of 100 ng g(-1). However, mercury concentrations in species from the freshwater Patos lagoon are remarkably higher (15.3 to 462 ng g(-1)) than those from the estuarine or marine region. Even though mercury concentrations in these fish species did not exceed the maximum level (500 ng g(-1)) allowed by WHO for human consumption, they represent the main food source for sea birds and mammals coming from South Pole during their migration period.
在这项研究中，我们测量了 27 种具有高商业价值的不同鱼类中的汞浓度。这些样本取自一个水生环境多样性的地区。海洋鱼类的汞浓度范围为 30.4 至 216ng/g，而河口鱼类的汞浓度范围为 12.4 至 60.3ng/g。与海洋物种的汞浓度相比，来自河口环境的标本中没有一种达到 100ng/g。然而，来自帕托斯泻湖的淡水物种的汞浓度（15.3 至 462ng/g）明显高于河口或海洋地区的汞浓度。尽管这些鱼类的汞浓度没有超过世界卫生组织允许人类食用的最高水平（500ng/g），但它们是来自南极的海鸟和哺乳动物在迁徙期间的主要食物来源。
