Know Your Environment. Protect Your Health.

Perfluoropentane sulfonic acid (PFPeS)

Town of Poolesville

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND150ND
2024ND10ND

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
2023-02-07101030PND
2023-02-07101031PND
2023-02-07101032PND
2023-02-07101033PND
2023-02-07101034PND
2023-02-07101035PND
2023-02-07101036PND
2023-08-08106692PND
2023-08-08106693PND
2023-08-08106694PND
2023-08-08106695PND
2023-08-08106696PND
2023-08-08106697PND
2023-08-08106698PND
2023-12-05107802PND
2024-03-11114138PND