Know Your Environment. Protect Your Health.

Perfluoropentane sulfonic acid (PFPeS)

Cloquet

Perfluoropentane sulfonic acid (PFPeS) is a member of a group of perfluorinated chemicals used in many consumer products. PFPeS 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND70ND
20220.590 ppt32ND - 1.10 ppt
20230.439 ppt73ND - 1.10 ppt
2024ND40ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppt

The EWG Health Guideline of 1 ppt for PFPeS was defined by EWG as 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.

ppt = parts per trillion

All test results

Date Lab ID Result
2021-09-2121I1146-01ND
2021-09-2121I1146-02ND
2021-09-2121I1146-03ND
2021-09-2121I1146-04ND
2021-09-2121I1144-01ND
2021-12-1521L0722-01ND
2021-12-1521L0722-02ND
2022-03-2222C0993-01ND
2022-06-1522F1016-010.670 ppt
2022-12-0622L0244-011.10 ppt
2023-06-0623F0488-010.870 ppt
2023-09-0723I0302-011.10 ppt
2023-09-0732303086-1ND
2023-09-0732303086-3ND
2023-09-0732303086-5ND
2023-09-0732303086-7ND
2023-10-1723J0910-011.10 ppt
2024-03-1132400699003ND
2024-03-1132400699007ND
2024-03-1132400699005ND
2024-03-1132400699001ND