In our last article, we explored PFAS contamination at the national level under UCMR 5 and dug into some datasets pulled from KETOS’ new environmental data tool, PRISM. Now, we’ll dig deeper by breaking down the data by state to understand where PFAS exposure is most prominent.
Where Forever Chemicals Originate From in the USA
PFAS (Per- and Polyfluoroalkyl Substances) chemicals originate from a variety of industrial and consumer sources in the USA. These chemicals have been used in numerous applications largely due to PFAS’ resistance to heat, water, and oil.
Some of the primary sources of PFAS in America include:
Industrial Processes
PFAS chemicals are used to produce non-stick coatings (like Teflon), waterproof fabrics, and stain-resistant textiles. Companies involved in chemical manufacturing have historically been a significant source of PFAS pollution, releasing these substances into the air, water, and soil. PFAS are also used in semiconductor manufacturing, electronics production, and aerospace industries due to their durable, heat-resistant properties.
Another primary source of PFAS pollution comes from the use of aqueous film-forming foams (AFFF), which are used to combat petroleum-based fires. Airports, military bases, and firefighting training centers have historically used PFAS-containing foams, leading to contamination of nearby water sources. Many military bases and airports are hotspots for PFAS contamination due to the historical use of AFFF in firefighting exercises. This has led to soil and water contamination, particularly around base facilities.
Consumer Products
Products like non-stick pans use PFAS in the US to provide their characteristic slippery surfaces. The use of PFAS for stain or water resistance is common across everyday household items such as clothing, carpets, and upholstery. Certain types of food wrappers and containers also often contain PFAS. Those designed to resist grease (like fast food wrappers) will contain PFAS as well.
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