Bartolomé L, Navarro P, Raposo J C, Arana G, Zuloaga O, Etxebarria N, Soto M
Department of Analytical Chemistry, University of the Basque Country, Barrio Sarriena, 48940, Leioa, Spain.
Arch Environ Contam Toxicol. 2010 Aug;59(2):235-43. doi: 10.1007/s00244-010-9476-7. Epub 2010 Feb 9.
From February 2004 to April 2006, the concentrations of more than 10 metals in mussels (Mytilus galloprovincialis) were measured in 10 stations from Galicia to the Basque Country in 8 different times of sampling. The mean highest concentrations are found for Zn [226.8 microg/g, dry weight (d.w.)] followed by Mn, As, Cu, and Co (between 10 and 25 microg/g d.w.). Lower mean concentrations are found for Se, Cr, Pb, V, and Ni (between 2 and 8 microg/g d.w.) and the lowest are for Cd, Sn, Hg, and Sb (between 0.05 and 1 microg/g d.w.). Among the statistical treatments used, the factor analysis showed a clustering of the mussels according to the geographical location. In addition, the temporal trend of the metal concentrations was studied by means of the Mann-Kendall test. In this sense, some stations showed a decreasing trend in the accumulation of the metallic content. However, there were some local pollution events that could be explained as a consequence of anthropogenic activities. Finally, the effects of the oil spill from the Prestige are discussed based on the experimental Ni/V ratio values obtained from this work and those of the original oil.
2004年2月至2006年4月期间，在8个不同采样时间对从加利西亚到巴斯克地区的10个站点的贻贝（Mytilus galloprovincialis）中10多种金属的浓度进行了测量。锌的平均最高浓度为[226.8微克/克，干重（d.w.）]，其次是锰、砷、铜和钴（10至25微克/克干重之间）。硒、铬、铅、钒和镍的平均浓度较低（2至8微克/克干重之间），镉、锡、汞和锑的浓度最低（0.05至1微克/克干重之间）。在所采用的统计处理方法中，因子分析显示贻贝根据地理位置聚类。此外，通过曼-肯德尔检验研究了金属浓度的时间趋势。从这个意义上说，一些站点的金属含量积累呈下降趋势。然而，也有一些局部污染事件可归因于人为活动。最后，根据本研究获得的实验镍/钒比值以及原油的镍/钒比值，讨论了“威望号”油轮漏油事件的影响。
