Know Your Environment. Protect Your Health.

Perfluorooctane sulfonate (PFOS)

Quimper

Perfluorooctane sulfonate (PFOS) 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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
20220.213 ppt121ND - 2.55 ppt
2023ND80ND
2024ND80ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.3 ppt

The EWG Health Guideline of 0.3 ppt for PFOS was defined by EPA's final toxicity value from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects againat cardiovascular harm and harm to fetal growth.

EPA Maximum Contaminant
Level (MCL): 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2022-03-144266219ND
2022-03-144266213ND
2022-03-144266224ND
2022-03-144266222ND
2022-03-144266215ND
2022-03-154266211ND
2022-03-154266207ND
2022-03-1542662052.55 ppt
2022-05-054394957ND
2022-05-054394955ND
2022-05-054394956ND
2022-07-264343171ND
2023-09-054540550ND
2023-09-054540548ND
2023-09-054540547ND
2023-09-054540545ND
2023-09-054540546ND
2023-09-054540551ND
2023-09-054540544ND
2023-09-054540549ND
2024-03-04K2402392-005ND
2024-03-04K2402392-001ND
2024-03-04K2402392-013ND
2024-03-04K2402392-009ND
2024-03-04K2402392-007ND
2024-03-04K2402392-011ND
2024-03-04K2402392-003ND
2024-03-04K2402392-015ND