Department of Environmental Chemistry, Water and Soil Quality Research Group, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
Environ Sci Technol. 2013 Jun 4;47(11):5619-25. doi: 10.1021/es400675y. Epub 2013 May 14.
Most current bioexposure assessments for UV filters focus on contaminants concentrations in fish from river and lake. To date there is not information available on the occurrence of UV filters in marine mammals. This is the first study to investigate the presence of sunscreen agents in tissue liver of Franciscana dolphin (Pontoporia blainvillei), a species under special measures for conservation. Fifty six liver tissue samples were taken from dead individuals accidentally caught or found stranded along the Brazilian coastal area (six states). The extensively used octocrylene (2-ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate, OCT) was frequently found in the samples investigated (21 out of 56) at concentrations in the range 89-782 ng·g(-1) lipid weight. São Paulo was found to be the most polluted area (70% frequency of detection). Nevertheless, the highest concentration was observed in the dolphins from Rio Grande do Sul (42% frequency of detection within that area). These findings constitute the first data reported on the occurrence of UV filters in marine mammals worldwide.
大多数当前的紫外线滤光剂生物暴露评估都集中在来自河流和湖泊的鱼类中的污染物浓度上。迄今为止，关于海洋哺乳动物中紫外线滤光剂的存在情况尚无信息。这是首次研究防晒霜在受特别保护的物种巴西大西洋沿岸宽吻海豚（Pontoporia blainvillei）肝脏组织中的存在情况。从巴西沿海地区（六个州）意外捕获或搁浅的死亡个体中采集了 56 个肝脏组织样本。研究中发现，广泛使用的奥克立林（2-乙基己基-2-氰基-3,3-二苯基-2-丙烯酸盐，OCT）在被调查的样本中经常出现（56 个样本中有 21 个），浓度范围为 89-782ng·g(-1)脂重。发现圣保罗是污染最严重的地区（检出率为 70%）。不过，在南里奥格兰德州的海豚中观察到的浓度最高（该地区的检出率为 42%）。这些发现构成了全球首次报告海洋哺乳动物中紫外线滤光剂存在情况的数据。
