Organophosphate flame retardants and organosiloxanes in predatory freshwater fish from locations across Canada
| Autor: | Daryl J. McGoldrick, Robert J. Letcher, Michael J. Keir, Jeff Small, Enzo Barresi, Mandi G. Clark, Sean Backus, Ed Sverko |
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| Rok vydání: | 2014 |
| Předmět: |
Canada
Siloxanes Trout Health Toxicology and Mutagenesis Fresh Water Toxicology chemistry.chemical_compound Organophosphorus Compounds Animals Salvelinus Flame Retardants Ontario biology Organophosphate General Medicine biology.organism_classification Phosphate Pollution Organophosphates chemistry Perches Environmental chemistry Freshwater fish Fish Whole body Water Pollutants Chemical Fire retardant |
| Zdroj: | Environmental pollution (Barking, Essex : 1987). 193 |
| ISSN: | 1873-6424 |
| Popis: | Whole body homogenates of Lake Trout (Salvelinus namaycush) or Walleye (Sander vitreus) collected from Canadian lakes were screened for organophosphate flame retardant (OPFR) and organosiloxane compounds. Six OPFR and five siloxane compounds were detected above quantitation limits in at least one individual fish from sampled lakes. The OPFRs, tris(2-chloroethyl) phosphate (TCEP) and tris(2-butoxyethyl) phosphate (TBOEP), were most frequently quantified with concentrations ranging from0.07 to 9.8 ng/g (ww). Levels of TBOEP were highest in fish from the Great Lakes region while TCEP was detected only in fish from the northernmost lakes in our network. Concentrations of the cyclic siloxanes, octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5) and dodecamethylcyclohexasiloxane (D6), were above quantitation limits in all fish. D5 was the most abundant siloxane across all sampling locations with the highest concentrations (45-719 ng/g ww) observed in Lake Trout from the western end of Lake Ontario near the mouth of the Niagara River. |
| Databáze: | OpenAIRE |
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