Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Riverbridge

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.0390 ppt121ND - 0.473 ppt
2022ND20ND
2023ND10ND

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 Result
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-01-27ND
2021-01-27ND
2021-01-27ND
2021-01-270.473 ppt
2021-01-27ND
2021-10-25ND
2021-11-17ND
2022-04-22ND
2022-07-13ND
2023-01-27ND