Know Your Environment. Protect Your Health.

Perfluorobutane sulfonate (PFBS)

Kent Water Department

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND120ND
2014ND10ND
2015ND200ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
20220.271 ppt81ND - 2.17 ppt
2023N/A00N/A

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 2,000 ppt

The EWG Health Guideline of 2,000 ppt for perfluorobutane sulfonate was defined by EPA’s Human Health toxicity value. This health guideline hormone disruption and harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Lab ID Result
2013-03-043C05019-02AND
2013-03-043C05019-06AND
2013-03-043C05019-05AND
2013-03-043C05019-04AND
2013-03-043C05019-03AND
2013-03-043C05019-01AND
2013-12-263L27030-09AND
2013-12-263L27030-05AND
2013-12-263L27030-07AND
2013-12-263L27030-01AND
2013-12-263L27030-03AND
2013-12-263L27030-11AND
2022-02-074255346ND
2022-02-0742556032.17 ppt
2022-02-074255601ND
2022-02-074255367ND
2022-02-074255599ND
2022-02-074255600ND
2022-02-074255598ND
2022-02-074255602ND