Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Regional Water Authority

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023ND150ND
2024ND150ND

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
2023-09-1867914701ND
2023-09-1867914001ND
2023-09-1867914101ND
2023-09-1867914401ND
2023-09-1867914301ND
2023-09-1867914201ND
2023-09-1967915101ND
2023-09-1967914901ND
2023-09-2067914801ND
2023-09-2767914601ND
2023-11-2768847201ND
2023-12-1368756001ND
2023-12-1368755901ND
2023-12-1368755801ND
2023-12-1368755701ND
2024-03-1869472901ND
2024-03-1869472801ND
2024-03-1869473101ND
2024-03-1869473001ND
2024-03-1869473501ND
2024-03-1869472701ND
2024-03-1869473401ND
2024-03-1969473701ND
2024-03-1969473201ND
2024-03-2069473601ND
2024-03-2069473301ND
2024-06-1170421001ND
2024-06-1170420901ND
2024-06-1170420801ND
2024-06-1170421101ND