Industrial chemical perfluorobutanoic acid less likely to accumulate in human lungs and kidneys

A 2013 study by Pérez et al. reported a very high accumulation of the industrial chemical perfluorobutanoic acid (PFBA) in human lungs and kidneys. The German Federal Institute for Risk Assessment (BfR) checked these results using a more precise quantification method. The result: Only one sample contained a quantifiable PFBA value of 0.17 nanograms (ng) per gram (g) of lung tissue.