Perfluoroundecanoic acid
Perfluoroundecanoic acid (PFUnA) is part of a class of synthetic compounds known as per- and polyfluoroalkyl substances (PFAS) widely used to make products more resistant to stains, water, and grease. It has been used in food packaging, sofas, and carpets. Like many other PFAS, PFUnA is highly persistent in the environment and the body. PFUnA is similar in structure to the better-known perfluorooctanoic acid, or PFOA, which has multiple well-documented health effects. More research is required to understand the health impacts of elevated PFUnA, but elevated exposure has been associated with liver and developmental toxicity in animal studies.
EPA MCLG Level
6 ppb
Maximum level that poses minimal health risk based on the latest science
Health Effects
Research into the health effects of PFAS is rapidly evolving. The impacts of PFUnA on human health are not well known due to limited research. However, animal studies have indicated an association between elevated exposure levels of PFUnA and liver and developmental toxicity.
Affected Organs & Systems:
Common Sources
- Not naturally occurring, so its widespread detection in surface and groundwater sources can be attributed to human release
- Includes wastewater discharge and industrial waste from PFAS manufacturing and processing facilities
- Elevated levels of PFUnA may be found near industrial sites using PFAS
How to Remove It
Water filters certified under the following NSF standards are effective at removing Perfluoroundecanoic acid:
EPA MCLG Level
The EPA MCLG represents the maximum level that poses minimal health risk based on the latest scientific research. It's often more protective than federal legal limits.
Contaminant Type
Perfluoroundecanoic acid is classified as a PFAS contaminant.
This contaminant primarily affects the developmental, liver.
Check Your Water
Find out if Perfluoroundecanoic acid is in your tap water.
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