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Concentrations of PFOS, PFOA and other perfluorinated alkyl acids in Australian drinking water



Concentrations of PFOS, PFOA and other perfluorinated alkyl acids in Australian drinking water



Chemosphere 83(10): 1320-1325



Perfluorinated alkyl acids (PFAAs) are persistent environmental pollutants, found in the serum of human populations internationally. Due to concerns regarding their bioaccumulation, and possible health effects, an understanding of routes of human exposure is necessary. PFAAs are recalcitrant in many water treatment processes, making drinking water a potential source of human exposure. This study was conducted with the aim of assessing the exposure to PFAAs via potable water in Australia. Sixty-two samples of potable water, collected from 34 locations across Australia, including capital cities and regional centers. The samples were extracted by solid phase extraction and analyzed via liquid chromatography/tandem mass spectrometry for a range of perfluoroalkyl carboxylates and sulfonates. PFOS and PFOA were the most commonly detected PFAAs, quantifiable in 49% and 44% of all samples respectively. The maximum concentration in any sample was seen for PFOS with a concentration of 16 ng L(-1), second highest maximums were for PFHxS and PFOA at 13 and 9.7 ng L(-1). The contribution of drinking water to daily PFOS and PFOA intakes in Australia was estimated. Assuming a daily intake of 1.4 and 0.8 ng kg(-1) bw for PFOS and PFOA the average contribution from drinking water was 2-3% with a maximum of 22% and 24% respectively.

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Accession: 052281296

Download citation: RISBibTeXText

PMID: 21531441

DOI: 10.1016/j.chemosphere.2011.04.017


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