Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Jennie Clarkson Home

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20212.18 ppt63ND - 5.55 ppt
20223.27 ppt108ND - 5.85 ppt
20232.32 ppt96ND - 5.88 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
2021-06-01L212915001-PFAS3.14 ppt
2021-06-01L212915002-PFASND
2021-09-28L215269801-PFASND
2021-10-19L215729102-PFASND
2021-10-19L215729101-PFAS4.40 ppt
2021-12-03L216687302-PFAS5.55 ppt
2022-02-20L220912502-PFASND
2022-02-20L220912501-PFAS4.69 ppt
2022-03-20L221468501-PFAS4.99 ppt
2022-06-19L2232813-01-PFAS4.83 ppt
2022-06-19L2232813-02-PFASND
2022-06-26L2234236-01-PFAS4.92 ppt
2022-09-07L2248718-02-PFAS0.750 ppt
2022-09-07L2248718-01-PFAS5.57 ppt
2022-10-02L2254424-01-PFAS5.85 ppt
2022-12-22L2272353-01-PFAS1.07 ppt
2023-01-10L2301675-01-PFAS5.88 ppt
2023-01-10L2301675-02-PFAS1.17 ppt
2023-03-07L2312366-01-PFAS5.00 ppt
2023-03-07L2312366-02-PFASND
2023-06-14L2335485-02-PFAS3.88 ppt
2023-06-14L2335485-01-PFASND
2023-09-28L2358237-01-PFAS1.14 ppt
2023-11-08CP44013-PFASND
2023-11-28CP56012-PFAS3.85 ppt