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The spatial distributions and seasonal variations of perfluoroalkyl substances (PFASs) in surface waters were investigated for the German rivers Elbe and lower Weser, and the North Sea. ∑PFAS concentrations ranged from 4.1 to 250ngL −1 in the River Elbe, from 3.8 to 16ngL −1 in the lower Weser, and from 0.13 to 10ngL −1 in the North Sea. The most abundant compound was perfluorobutanesulfonate...
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