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EWG's Tap Water Database — 2021 UPDATE

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Perfluorobutane sulfonate (PFBS)

Kalaheo-Koloa

Perfluorobutane sulfonate (PFBS) is a member of a group of perfluorinated chemicals used in many consumer products. PFOS and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

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20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND90ND
2014ND100ND
2015ND10ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppt

The EWG Health Guideline of 1 ppt for perfluorobutane sulfonate was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.

ppt = parts per trillion

All test results

Date Lab ID Result
2013-11-14201311200635AMND
2013-11-14201311200584AMND
2013-11-14201311200587AMND
2013-11-15201311200546AMND
2013-11-15201311200637AMND
2013-11-15201311200529AMND
2013-11-15201311200549AMND
2013-11-15201311200639AMND
2013-11-19201311200536AMND
2014-05-14201405160301AMND
2014-05-14201405160430AMND
2014-05-14201405160432AMND
2014-05-14201405160428AMND
2014-05-14201405160436AMND
2014-05-19201405210832AMND
2014-05-19201405210824AMND
2014-05-19201405210798AMND
2014-05-19201405210830AMND
2014-08-13201408150392AMND
2015-07-31201508040429AMND