Concentrations and trophic magnification of cyclic siloxanes in aquatic biota from the Western Basin of Lake Erie, Canada
| Autor: | Cecilia Chan, Mandi G. Clark, Daryl J. McGoldrick, Michael J. Keir, Ken G. Drouillard, Sean Backus |
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| Rok vydání: | 2014 |
| Předmět: |
Canada
Food Chain Siloxanes Range (biology) Health Toxicology and Mutagenesis Biomagnification Decamethylcyclopentasiloxane Structural basin Toxicology chemistry.chemical_compound Biology Trophic level Ecology Life Sciences Biota General Medicine Environmental exposure Pollution Food web Lakes chemistry Environmental chemistry Environmental science Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Biological Sciences Publications |
| Popis: | We examine the concentrations and food web biomagnification of three cyclic volatile methylsiloxanes (cVMS) octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), and dodecamethylcyclohexasiloxane (D6) using aquatic biota collected from Lake Erie. Concentrations of cVMS in biota were within the range reported for other studies of cVMS in aquatic biota. Trophic magnification factors (TMF) were assessed in various food web configurations to investigate the effects of food web structure. TMF estimates were highly dependent on the inclusion/exclusion of the organisms occupying the highest and lowest trophic levels and were >1 for D4 and D5, indicating biomagnification, in only 1 of the 5 food web configurations investigated and were |
| Databáze: | OpenAIRE |
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