Scientists at the University of Notre Dame will begin an independent study of turnout gear worn by firefighters after initial samples tested positive for fluorine.
Graham Peaslee, a professor of experimental nuclear physics at the University of Notre Dame, and his lab tested fabric swatches taken from unused personal protective gear for the presence of perfluorinated alkyl substances (PFASs).
“The results were phenomenal — off the scale in parts per million of fluorine in all but one of the samples,” Peaslee said. “Everything was just loaded with fluorine.” Following the initial tests, Peaslee is leading a study of new and used turnout and personal protective gear issued throughout the 2000s, including jackets, pants and undershirts — all of which are either new or have been in service for more than a decade.
Various forms of PFASs have been linked to prostate, kidney and testicular cancers, as well as thyroid disease and low birthweight. The chemicals are commonly associated with stain-resistant products and the manufacture of nonstick cookware. In 2017, Peaslee was one of several researchers who uncovered the presence of PFASs in fast-food wrappers.
The chemicals are also a component of aqueous film-forming foams. These foam fire suppressants have been linked to incidents of contaminated drinking water. In Michigan, where a number of communities have traced water contamination to the use of the foam, some fire officials are working to limit its use or to use alternative, PFAS-free formulas when possible. The United States Air Force began phasing out PFAS-based foam for an environmentally safer alternative in 2016, and finished replacing its stock in 2017.