PFDoA

What is PFDoA?

Perfluorododecanoic acid is a man-made chemical that belongs to the PFAS family, a group of thousands of chemicals often called "forever chemicals" because they break down very slowly in the environment and in the human body. PFDoA is a longer-chain PFAS, meaning its molecular structure is larger than many of the more commonly studied PFAS compounds. Like other PFAS, it can build up over time in water, soil, and living things.

Where does it come from?

PFDoA has been used in industrial processes and can be found in some consumer products, including stain-resistant coatings on fabrics and carpets, water-repellent clothing, and certain food packaging materials. It can also be released into the environment through industrial manufacturing and waste disposal. These releases can eventually make their way into drinking water sources.

Health concerns

Research on PFDoA specifically is limited compared to better-studied PFAS like PFOA or PFOS. Some animal studies have associated PFDoA with effects on the liver and hormonal system, but strong human data is not yet available. Because the evidence is still early, research studies have not yet drawn firm conclusions about its health risks in people. If you have specific health concerns, consult a healthcare provider.

EPA standard

The EPA has not established a Maximum Contaminant Level (MCL) — a legal limit for how much of a chemical is allowed in public drinking water — for PFDoA. This means water utilities are not currently required to test for or remove it. The absence of a federal limit does not mean the chemical is considered safe.

What you can do

If you are concerned about PFDoA in your water, consider using a reverse osmosis filtration system, which research studies suggest is effective at reducing PFAS compounds. Granular activated carbon filters may also help reduce PFAS levels. Remember that boiling water does not remove PFAS and will not make your water safer from these chemicals.