期刊
MARINE POLLUTION BULLETIN
卷 74, 期 1, 页码 435-440出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2013.06.025
关键词
Brown booby; PCBs; Trophic levels; Remote environments; Long-range contaminant transport
资金
- Brazilian fostering agency Fundo de Amparo a Pesquisa do Estado de Sdo Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [55.8469/2005-1]
Remote islands, such as the Sao Pedro and Sao Paulo Archipelago (SPSPA), Brazil, are pristine areas. However, these locations are not exempt from the arrival of anthropogenic agents, such as persistent organic pollutants (POPs). The present study aimed to determine the occurrence and distribution of POPs in the marine biota of the SPSPA. Sample extractions were performed using a microwave-assisted method. The predominant compounds were PCBs and DDTs, which respectively had mean wet weight concentrations of 62.23 and 9.23 ng g(-1), in the tropical two-wing flying fish (Exocoetus volitans), 78.66 and 6.81 ng g-1 in the brown booby (Sula leucogaster) and 43.40 and 3.03 ng g-1 in the red rock crab (Grapsus grapsus). Low levels of contaminants suggest a relative degree of isolation. Occurrence and distribution profiles of PCBs support long-range atmospheric transport as the main source of contamination and demonstrate the ubiquity of these pollutants in the marine environment.(C) 2013 Elsevier Ltd. All rights reserved.
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