Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Oakdale

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2015ND120ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.333 ppt31ND - 1.000 ppt
20220.0700 ppt81ND - 0.560 ppt
2023ND80ND

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
2015-01-05K1500180-005ND
2015-01-05K1500180-001ND
2015-01-05K1500180-003ND
2015-01-05K1500180-009ND
2015-01-05K1500180-011ND
2015-01-05K1500180-007ND
2015-07-14K1507875-005ND
2015-07-14K1507875-001ND
2015-07-14K1507875-003ND
2015-07-14K1507875-009ND
2015-07-14K1507875-011ND
2015-07-14K1507875-007ND
2021-02-2321B1194-02ND
2021-02-2321B1194-011.000 ppt
2021-02-2321B1194-03ND
2022-08-0422H0440-01ND
2022-08-0422H0440-02ND
2022-08-0422H0440-03ND
2022-08-0422H0440-04ND
2022-08-0422H0440-050.560 ppt
2022-08-0422H0440-06ND
2022-12-2922L1156-01ND
2022-12-2922L1156-02ND
2023-06-0623F0362-01ND
2023-06-0623F0362-02ND
2023-08-2223H2241-02ND
2023-08-2223H2241-06ND
2023-08-2223H2241-05ND
2023-08-2223H2241-03ND
2023-12-2823L0917-02ND
2023-12-2823L0917-01ND