Perfluorobutanoic acid
Part of a class of synthetic compounds known as polyfluoroalkyl substances (PFAS) widely used to make products more resistant to stains, water, and grease. PFBA is a breakdown product of other PFAS compounds used in food packaging, stain resistant clothing and carpets, and was previously manufactured and used in the manufacturing of photographic film but has since been phased out of production.
EPA MCLG Level
1.8 ppb
Maximum level that poses minimal health risk based on the latest science
Health Effects
As with many PFAS compounds, research into the health effects of PFBA is rapidly evolving. Animal studies have shown associations between elevated PFBA levels and liver and thyroid toxicity, as well as developmental effects.
Affected Organs & Systems:
Common Sources
- Like other PFAS chemicals, PFBA is not naturally occurring, so its detection in source water is the result of human activity
- Includes wastewater discharge and industrial waste from PFAS manufacturing and processing facilities
- Elevated levels may be found near industrial sites where there was known use or disposal of PFBA; it can also result from the breakdown of other PFAS compounds in the environment
- PFBA is mobile in water and can contaminate large areas of groundwater; it has been found in surface water, municipal drinking water and private drinking water wells
How to Remove It
Water filters certified under the following NSF standards are effective at removing Perfluorobutanoic 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
Perfluorobutanoic acid is classified as a PFAS contaminant.
This contaminant primarily affects the thyroid, developmental, and other systems.
Check Your Water
Find out if Perfluorobutanoic acid is in your tap water.
Search Your CityTest Your Water for This Contaminant
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