Industrial chemical perfluorobutanoic acid less inclined to aggregate in human lungs and kidneys Kumar Jeetendra | September 25, 2021 A 2013 study by Perez et al. discovered a significant accumulation of the chemical used in industrial production, perfluorobutanoic Acid (PFBA) in the human kidneys and lungs. Researchers from the German Federal Institute for Risk Assessment (BfR) examined the results with an even more precise method for quantification. The resultwas that only one sample had …