11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic 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. For example, PFAS have been used in nonstick cookware, textiles, food packaging, electronics, cleaners, and many other consumer products.
Health Guideline Level (HGL)
0.005 ppb
Maximum level that poses minimal health risk based on the latest science
Health Effects
Certain PFAS chemicals have been associated with kidney, liver, and developmental toxicity as well as an increased risk of cancer.
Affected Organs & Systems:
Common Sources
- Like other PFAS chemicals, 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid 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 employing PFAS or sites using aqueous fire-fighting foams
How to Remove It
Water filters certified under the following NSF standards are effective at removing 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid:
Health Guideline Level
The HGL 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
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid is classified as a PFAS contaminant.
This contaminant primarily affects the developmental, kidneys, and other systems.
Check Your Water
Find out if 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid is in your tap water.
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