Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

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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.

 

16

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
2019ND20ND
2020ND20ND
20210.525 ppt41ND - 2.10 ppt
2022ND40ND
2023ND40ND

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
2019-06-25CA5200539_001_001-201906251152ND
2019-09-16CA5200539_001_001-201909160955ND
2020-09-14CA5200539_001_001-202009141105ND
2020-12-14CA5200539_001_001-202012140852ND
2021-03-16CA5200539_001_001-202103161004ND
2021-06-15CA5200539_001_001-202106151021ND
2021-09-21CA5200539_001_001-2021092110002.10 ppt
2021-12-07CA5200539_001_001-202112070957ND
2022-03-29CA5200539_001_001-202203291012ND
2022-06-28CA5200539_001_001-202206281106ND
2022-09-27CA5200539_001_001-202209270948ND
2022-12-27CA5200539_001_001-202212271050ND
2023-03-16CA5200539_001_001-202303160743ND
2023-06-27CA5200539_001_001-202306271018ND
2023-09-21CA5200539_001_001-202309210826ND
2023-12-28CA5200539_001_001-202312280637ND