DOVER, Del. (Nov. 10, 2025) — A new statewide survey by the Delaware Department of Natural Resources and Environmental Control shows that while awareness of per- and polyfluoroalkyl substances, known as PFAS, remains limited among residents, more Delawareans are learning about the issue and taking steps to reduce exposure. PFAS are synthetic chemicals used for decades in items such as nonstick cookware, stain-resistant fabrics, food packaging, and firefighting foam. Because they do not easily break down, the substances can accumulate in the environment and in people over time.
According to reports, the survey, conducted by research firm Responsive Management, gathered input from more than 1,200 adults across New Castle, Kent, and Sussex counties. Results show that only about one-third of residents feel confident or somewhat knowledgeable about PFAS, while 45 percent said they had never heard of them. Despite that, Delaware’s awareness rate is about 10 points higher than a similar 2023 national survey.
Drinking water ranked as the top concern, with 32 percent of respondents saying they are very or extremely concerned about PFAS contamination, and 39 percent saying they are somewhat concerned. Fewer than one-quarter recognized common exposure sources such as cookware, packaging, or firefighting materials. The findings also indicate that some Delawareans are taking personal precautions. Of those aware of PFAS, 27 percent said they use filtered or bottled water, and 26 percent reported avoiding nonstick cookware. Respondents identified DNREC, health professionals, scientists, and universities as their most trusted sources for PFAS information.
According to DNREC, the results will help guide future outreach and public education efforts focused on PFAS exposure and mitigation. Additional resources and updates are available at de.gov/pfas.
