Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Stillwater

Perfluorononanoic acid, otherwise known as PFNA or C9, is a PFC similar in function and use to PFOA. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.

 

48

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND30ND
2014ND30ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.291 ppt112ND - 1.70 ppt
20220.664 ppt84ND - 1.70 ppt
20230.349 ppt216ND - 1.70 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppt

The EWG Health Guideline of 6 ppt for perfluorononanoic acid was defined by EPA recommended application of the toxicity value for PFDA published in the Integrated Risk Information System’s toxicological review . This health guideline harm to the immune system and harm to fetal growth and child development.

EPA Maximum Contaminant
Level (MCL): 10 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2013-12-19K1313958-003ND
2013-12-19K1313958-001ND
2013-12-19K1313958-005ND
2014-06-05K1405928-003ND
2014-06-05K1405928-001ND
2014-06-05K1405928-005ND
2015-07-21K1508072-001ND
2015-12-09K1514271-001ND
2021-09-1621I0825-02ND
2021-09-1621I0825-01ND
2021-09-1621I0825-031.70 ppt
2021-09-1621I0825-04ND
2021-09-1621I0825-05ND
2021-09-1621I0825-06ND
2021-09-1621I0825-07ND
2021-09-1621I0825-08ND
2021-09-1621I0825-09ND
2021-11-3021K1448-02ND
2021-11-3021K1448-011.50 ppt
2022-03-2922C1157-011.50 ppt
2022-05-1022E0781-011.50 ppt
2022-11-2222K1024-06ND
2022-11-2222K1024-011.70 ppt
2022-11-2222K1024-02ND
2022-11-2222K1024-030.610 ppt
2022-11-2222K1024-04ND
2022-11-2222K1024-05ND
2023-03-0723C0417-011.60 ppt
2023-03-0723C0417-02ND
2023-03-0723C0417-030.390 ppt
2023-03-0723C0417-04ND
2023-03-0723C0417-05ND
2023-03-0723C0417-06ND
2023-04-2723D1689-05ND
2023-04-2723D1689-01ND
2023-04-2723D1689-02ND
2023-04-2723D1689-03ND
2023-04-2723D1689-071.50 ppt
2023-04-2723D1689-04ND
2023-08-1623H1904-071.70 ppt
2023-08-1623H1904-05ND
2023-08-1623H1904-04ND
2023-08-1623H1904-03ND
2023-08-1623H1904-020.440 ppt
2023-08-1623H1904-01ND
2023-11-1323K0620-011.70 ppt
2023-11-1323K0620-02ND
2023-11-1323K0620-03ND