Polybrominated Diphenyl Ethers (PBDEs) in sediments of Bahía Blanca estuary (Argentina)

TOMBESI NORMA; POZO KARLA; ALVAREZ, MÓNICA; PRIBYLOVA P.; KUKUCKA P.; KLANOVA J.

Buenos Aires

Congreso; SETAC Latin America 11th Biennial Meeting; 2015

Polybrominated Diphenyl Ethers (PBDEs) are one type of brominated organic compounds commonly used as flame retardants in a number of applications, including textiles, plastics, wire insulation, and automobiles. Due to their toxicity and persistence, the industrial production of some PBDEs (penta and octabromodiphenyl ethers formulations) is restricted under the Stockholm Convention (Stockholm Convention, 2011). The study of trace organic contaminants in coastal marine environments and especially in estuarine systems is of great importance since these areas are biologically productive and receive considerable pollutant inputs from land-based sources via river runoff and sewage outfalls. The Bahia Blanca Estuary System constitutes an ecosystem unique in the world by its physical, geographic and biological characteristics. Surface sediments (four stations) from the north shoreline (the more anthropized coast) of Bahía Blanca estuary were analyzed for 10 PBDE congeners (PBDE-28, -47, -66, -99, -100, -85, -154, -153, -183, -209). PBDE analyses were performed by gas chromatography?mass spectrometry. Results showed that from all congeners analyzed PBDE-28, -47, -99, -100 and -209 were the detected. ΣPBDE28,47,99,100 ranged from Acknowledgments This investigation was supported by Universidad Nacional del Sur, PGI MayDS project (N. Tombesi). The authors thank to Fondecyt 1130329 project (K. Pozo). This project was also supported by the National Sustainability Programme of the Czech Ministry of Education, Youth and Sports (LO1214) and the RECETOX research infrastructure (LM2011028). References: Stockholm Convention (2011) http://chm.pops.int/ Pozo et al. (2015). Marine Pollution Bulletin 95, 480?483