Know Your Environment. Protect Your Health.

9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)

Lake Mahopac Condo

9-chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) is a member of a group of perfluorinated chemicals used in many consumer products. 9Cl-PF3ONS 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.

 

9

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
2021ND40ND
2022ND20ND
2023ND30ND

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 9Cl-PF3ONS 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
2021-06-03CI44875ND
2021-08-25CJ15063ND
2021-10-01GCJ32527ND
2021-11-23CJ84586ND
2022-03-07CK81662ND
2022-03-07CK00413ND
2023-06-09CO24576PFASND
2023-06-22CO35245PFASND
2023-11-01CP40898PFASND