Know Your Environment. Protect Your Health.

4:2 Fluorotelomer Sulfonic Acid (4:2 FTSA)

Rochester

4:2 Fluorotelomer Sulfonic Acid (4:2 FTSA) is a member of a class of chemicals called per- and polyfluoroalkyl substances or PFAS. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

 

60

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
2023ND300ND
2024ND300ND

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 4:2 fluorotelomer sulfonic acid (4:2 FTSA) was defined by EWG 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
2023-08-0132302641055ND
2023-08-0132302641023ND
2023-08-0132302641027ND
2023-08-0132302641005ND
2023-08-0132302641053ND
2023-08-0132302641051ND
2023-08-0132302641003ND
2023-08-0132302641009ND
2023-08-0132302641015ND
2023-08-0132302641013ND
2023-08-0132302641025ND
2023-08-0132302641011ND
2023-08-0132302641001ND
2023-08-0132302641007ND
2023-08-0232302641045ND
2023-08-0232302641029ND
2023-08-0232302641047ND
2023-08-0232302641031ND
2023-08-0232302641035ND
2023-08-0232302641021ND
2023-08-0232302641039ND
2023-08-0232302641033ND
2023-08-0232302641043ND
2023-08-0232302641037ND
2023-08-0232302641049ND
2023-08-0232302641017ND
2023-08-0232302641019ND
2023-08-2332302883001ND
2023-08-2332302883003ND
2023-10-1832303616005ND
2024-02-2132400505019ND
2024-02-2132400505023ND
2024-02-2132400505021ND
2024-02-2132400538029ND
2024-02-2132400505017ND
2024-02-2132400505011ND
2024-02-2132400505009ND
2024-02-2132400505003ND
2024-02-2132400505015ND
2024-02-2132400505007ND
2024-02-2132400505005ND
2024-02-2132400505001ND
2024-02-2132400505013ND
2024-02-2232400538021ND
2024-02-2232400538001ND
2024-02-2232400538003ND
2024-02-2232400538027ND
2024-02-2232400538035ND
2024-02-2232400538023ND
2024-02-2232400538025ND
2024-02-2232400538005ND
2024-02-2232400538019ND
2024-02-2232400538009ND
2024-02-2232400538031ND
2024-02-2232400538017ND
2024-02-2232400538033ND
2024-02-2232400538011ND
2024-02-2232400538013ND
2024-02-2232400538015ND
2024-02-2232400538007ND