Overview

• The July 15 study by the CDC and ATSDR tested blood from 5,286 adults and 710 children living near known PFAS-contaminated drinking sites in eight states.
• Four compounds—PFOS, PFOA, PFHxS and PFNA—were found in nearly all participants and average levels of PFOA and PFHxS surpassed those recorded in the general US population.
• Samples from private wells in Bucks and Montgomery Counties measured PFAS concentrations up to 5,000 parts per trillion, over 1,000 times the EPA’s safety threshold.
• About 30% of participants had PFAS concentrations that the National Academies of Sciences, Engineering, and Medicine recommends warrant clinical medical testing.
• Preliminary health outcome findings will be shared at a virtual public meeting on July 28 as communities and regulators work to meet the new EPA drinking water limits.