Know Your Environment. Protect Your Health.

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)

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11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) is a member of a group of perfluorinated chemicals used in many consumer products. 11Cl-PF3OUdS 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.

 

13

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
2020ND60ND
2021ND50ND
2022ND20ND
2023N/A00N/A

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 11Cl-PF3OUdS 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
2020-03-26GWEF2003261110SKND
2020-06-30GWEF2006301345MKND
2020-10-06GWEF2010061320MKND
2020-10-06GWEF2010061325MKND
2020-10-06LJ27926ND
2020-10-06LJ27931ND
2021-03-23LJ48853ND
2021-03-23LJ48854ND
2021-04-27LJ53583ND
2021-09-232109D25-01ND
2021-10-19LJ85331ND
2022-04-20LK09382ND
2022-04-20LK09384ND