Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Lake Mahopac Condo

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.555 ppt42ND - 1.11 ppt
20220.230 ppt61ND - 1.38 ppt
20230.953 ppt43ND - 1.38 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
2021-06-03CI448751.11 ppt
2021-08-25CJ15063ND
2021-10-01GCJ32527ND
2021-11-23CJ845861.11 ppt
2022-03-07CK81662ND
2022-03-07CK00413ND
2022-06-0239203171.38 ppt
2022-08-29CM18438ND
2022-09-20CM37881ND
2022-11-22CM90908ND
2023-02-16CN44500ND
2023-06-09CO24576PFAS1.16 ppt
2023-06-22CO35245PFAS1.38 ppt
2023-11-01CP40898PFAS1.27 ppt