| Autor: |
Ye X; Human Exposure and Atmospheric Sciences Division, National Exposure Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA., Strynar MJ, Nakayama SF, Varns J, Helfant L, Lazorchak J, Lindstrom AB |
| Jazyk: |
angličtina |
| Zdroj: |
Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2008 Dec; Vol. 156 (3), pp. 1227-32. Date of Electronic Publication: 2008 May 02. |
| DOI: |
10.1016/j.envpol.2008.03.014 |
| Abstrakt: |
A method for the analysis of 10 perfluorinated compounds (PFCs) in whole fish homogenate is presented and applied to 60 fish samples collected from the Ohio, Missouri, and upper Mississippi Rivers in 2005. Method accuracy ranged between 86 and 125% with limits of quantitation between 0.2 and 10 ng/g wet weight. Intra- and inter-batch precision was generally +/-20%. Perfluorooctane sulfonate (PFOS) was the predominant compound identified in these samples, contributing over 80% of total PFC composition in the fish from these rivers, with median PFOS concentrations of 24.4, 31.8, and 53.9 ng/g wet wt in the Missouri, Ohio, and Mississippi Rivers, respectively. Median PFOS levels were significantly (p=0.01) elevated in piscivorous fish (88.0 ng/g) when compared with non-piscivorous fish (15.9 ng/g). The 10 samples with PFOS concentrations above 200 ng/g were broadly scattered across all three rivers, providing evidence of the widespread presence of this compound in these US waterways. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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Full Text from ScienceDirect