Peña-Vázquez Elena, Villanueva-Alonso Julia, Bermejo-Barrera Adela, Bermejo-Barrera Pilar
Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida de las Ciencias s/n, E-15782, Santiago de Compostela, Spain.
J Environ Monit. 2006 Jun;8(6):641-8. doi: 10.1039/b600472e. Epub 2006 May 12.
The behaviour of arsenic and antimony in the Ría de Arousa (Galicia, north west of Spain) and the influence of the Prestige accident in the estuary is evaluated. As and Sb were simultaneously determined by HG-ICPOES in seawater samples after a preconcentration with La in a knotted reactor. The highest As concentration is in the inner and middle parts of the ría where the current is weaker and next to the main ports of the area. The largest Sb concentrations were found in the bay of the ría. Linear variation of concentration vs. salinity for As and As/Sb ratios indicated that there was no pollution in the waters of Arousa. The Prestige oil spillage had no serious influence and the values of arsenic (most of them <1.5 microg L(-1)) are similar to the average oceanic concentration, whereas concentrations for antimony (most of them <0.15 microg L(-1)) are less than the oceanic ones.
评估了西班牙西北部加利西亚自治区阿罗萨河口（Ría de Arousa）中砷和锑的行为以及“威望号”事故对该河口的影响。海水样品经在打结反应器中用镧预富集后，采用氢化物发生-电感耦合等离子体发射光谱法（HG-ICPOES）同时测定其中的砷和锑。砷浓度最高的区域位于河口内部和中部，这些区域水流较缓且靠近该地区的主要港口。锑浓度最高的区域位于河口海湾。砷浓度和砷/锑比值随盐度的线性变化表明，阿罗萨水域未受污染。“威望号”漏油事故未产生严重影响，砷的含量（大部分<1.5微克/升）与大洋平均浓度相似，而锑的浓度（大部分<0.15微克/升）低于大洋浓度。
