Perfluorooctanoic acid and perfluorooctane sulfonate in the sediment of the Roter Main river, Bayreuth, Germany

Sediment–water distribution of perfluorooctane sulfonate (PFOS) in Yangtze River Estuary

“…The Pearson correlations between K d and TOC, clay, silt and sand were 0.71, 0.55, 0.49 and À0.50 respectively, which suggested that the enrichment of PFOS on the sediment was not significantly correlated to the content of TOC as well as clay, silt and sand. This result is different from the earlier findings of Higgins and Luthy (2006), but agrees to the results presented by Becker et al (2008). The sequence of Pearson correlation suggested that the content of TOC contribute more to the sorption of PFOS than the other inorganic sediment constituents.…”

Perfluoroalkyl acids (PFAAs) in riverine and coastal sediments of Laizhou Bay, North China

“…than those observed in the Orge River, France (4.3±0.3 ng/g dw) (Labadie and Chevreuil, 2011), Sydney Harbour, Australia (0.80 ng/g to 6.2 ng/g dw) (Thompson et al, 2011) and the San Francisco coast, USA (nd to 3.07 ng/g dw) (Higgins et al, 2005). However, the concentrations of PFOS in this study were quite comparable with the concentrations reported in the Savannah River estuary, USA (0.3 ng/g to 0.8 ng/g dw) (Senthil et al, 2009), Roter Main River, Germany (0.07 ng/g to 0.31 ng/g dw) (Becker et al, 2008) and the Ariake Sea, Japan (0.09 ng/g to 0.14 ng/g dw) (Nakata et al, 2006). The concentrations of PFOS were generally higher than the concentrations of PFOA in sediments (Table 1) due to the stronger affinity of PFOS than PFOA in sediments Higgins and Luthy, 2006), but exceptions were also reported.…”

“…Sediments had been investigated in China (Bao et al, 2010a), Japan (Ahrens et al, 2009b), the United States (Senthil et al, 2009), Germany (Becker et al, 2008), France (Labadie and Chevreuil, 2011), Spain (Gomez et al, 2011) and Australia (Thompson et al, 2011) as an important sink and reservoir of PFAAs. Previous studies had suggested levels of tens to hundreds of ng/g for PFOA and PFOS in riverine and coastal sediments (Table 1).…”

Spatio-temporal assessment of perfluorinated compounds in the Brisbane River system, Australia: Impact of a major flood event

“…Sydney, Australia (Becker et al 2008;Sakurai et al 2010;Bao et al 2010;Aherns et al 2010b; Thompson et al 2011). Although approximately 97 % of PFASs remain in the dissolved phase (Aherns 2010b), given that 1,040,000 tonnes of sediment was flushed into…”