Concentrations of perfluorinated acids in livers of birds from Japan and Korea

Biochemical effect evaluation of perfluorooctane sulfonic acid-contaminated wood mice (Apodemus sylvaticus).

“…PFOS was not the only perfluorinated contaminant present in the liver tissue of the Blokkersdijk mice because PFNA, PFDA, PFUA, and PFDOA could also be detected, although only sporadically. The perfluorocarboxylates were generally present at lower concentrations than was PFOS, supporting the observation that PFOS is usually the perfluorochemical that is present at the highest concentrations in animal tissues (Kannan et al 2002a(Kannan et al , 2002b(Kannan et al , 2002cMoody et al 2002) probably because it might be a breakdown product of several perfluorochemicals (Canadian Environmental Protection Act 1999). The perfluorocarboxylates could have the same origin as PFOS because they tend to be present in the mice with the highest PFOS concentrations.…”

Determination of perfluorooctanesulfonate and perfluorooctanoic acid in sewage sludge samples using liquid chromatography/quadrupole time-of-flight mass spectrometry

“…2 shows the MS/MS spectrum obtained with the QTOF-MS instrument for PFOS, where the assignments with their corresponding mass accuracies are also indicated. For PFOS, the fragment at m/z 79.95 and 98.95 correspond to the SO 3 − and FSO 3 − , respectively [10]. For PFOA (Fig.…”

“…PFOS is also used as a surfactant in firefighting foams [2]. It spreads widely in the environment, wildlife, and humans [3][4][5][6][7][8][9][10]. Subchronic exposure to PFOS may lead to significant weight loss accompanied by hepatotoxicity and reductions of serum cholesterol and thyroid hormones.…”

Historical Trends in Human Serum Levels of Perfluorooctanoate and Perfluorooctane Sulfonate in Shenyang, China

“…538.22) and pentadecafluorooctanoic acid ammonium salt (FW. 431.10) were purchased from Fluka Perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) have recently received attention due to their widespread occurrence in the environment, in the wildlife and in humans (Kannan et al 2002;Jin et al 2004;Nakayama et al 2005;Dai et al 2006). In 2000, after 50 years of production, 3M announced phase out of perfluorooctanyl-based chemistry by 2002, because of the persistency in the environment (Renner 2001 .…”