First Determination of UV Filters in Marine Mammals. Octocrylene Levels in Franciscana Dolphins

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• 作者：Pablo Gago-Ferrero ; Mariana B. Alonso ; Carolina P. Bertozzi ; Juliana Marigo ; Lup茅rcio Barbosa ; Marta Cremer ; Eduardo R. Secchi ; Alexandre Azevedo ; Jos茅 Lailson-Brito Jr. ; Joao P. M. Torres ; Olaf Malm ; Ethel Eljarrat ; M. Silvia D铆az-Cruz ; Dami脿 Barcel贸
• 刊名：Environmental Science & Technology (ES&T)
• 出版年：2013
• 出版时间：June 4, 2013
• 年：2013
• 卷：47
• 期：11
• 页码：5619-5625
• 全文大小：261K
• 年卷期：v.47,no.11(June 4, 2013)
• ISSN：1520-5851

文摘

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鈥?82 ng路g^鈥? lipid weight. S茫o 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.