title: First determination of UV filters in marine mammals. Octocrylene levels in Franciscana dolphins.
abstract: 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.
authors.affiliation: Department of Environmental Chemistry, Water and Soil Quality Research Group, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Gago-Ferrero
authors.forename: Mariana B
authors.initials: MB
authors.lastname: Alonso
authors.forename: Carolina P
authors.initials: CP
authors.lastname: Bertozzi
authors.forename: Juliana
authors.initials: J
authors.lastname: Marigo
authors.forename: Lupércio
authors.initials: L
authors.lastname: Barbosa
authors.forename: Marta
authors.initials: M
authors.lastname: Cremer
authors.forename: Eduardo R
authors.initials: ER
authors.lastname: Secchi
authors.forename: Camila
authors.initials: C
authors.lastname: Domit
authors.forename: Alexandre
authors.initials: A
authors.lastname: Azevedo
authors.forename: José
authors.initials: J
authors.lastname: Lailson-Brito
authors.forename: Joao P M
authors.initials: JP
authors.lastname: Torres
authors.forename: Olaf
authors.initials: O
authors.lastname: Malm
authors.forename: Ethel
authors.initials: E
authors.lastname: Eljarrat
authors.forename: M Silvia
authors.initials: MS
authors.lastname: Díaz-Cruz
authors.forename: Damià
authors.initials: D
authors.lastname: Barceló
mesh_terms: D000179:Acrylates / Q000032:analysis*; D000818:Animals; D001938:Brazil; D004289:Dolphins; D004784:Environmental Monitoring; D005260:Female; D008055:Lipids / Q000737:chemistry; D008099:Liver / Q000737:chemistry*; D008297:Male; D010920:Placenta / Q000737:chemistry; D011247:Pregnancy; D013473:Sunscreening Agents / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D000179:Acrylates; D008055:Lipids; D013473:Sunscreening Agents; D014874:Water Pollutants, Chemical; C088673:octocrylene