F3 Shows Less Chronic But More Acute Toxicity Than AFFF, Study Finds

Early tests on the impact of fluorine-free foams (F3) on aquatic organisms show that their acute toxicity is greater than PFAS-containing aqueous film-forming foam (AFFF), but that chronic toxicity is generally similar to or less than AFFF, critical information as the Defense Department (DOD) faces a looming deadline to transition from AFFF. The acute toxicities of the six F3s tested were slightly more toxic than AFFF but still generally safe, while the chronic toxicities of the F3s varied by species...