Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Ayer Road Properties LLC

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.

 

67

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND140ND
2020ND70ND
2021ND150ND
20220.0560 ppt151ND - 0.840 ppt
2023ND150ND

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 Result
2018-08-22ND
2019-05-03ND
2019-05-03ND
2019-05-03ND
2019-05-03ND
2019-05-03ND
2019-05-03ND
2019-05-03ND
2019-05-03ND
2019-05-30ND
2019-05-30ND
2019-05-30ND
2019-05-30ND
2019-05-30ND
2019-05-30ND
2020-01-02ND
2020-05-05ND
2020-05-05ND
2020-05-05ND
2020-05-05ND
2020-05-05ND
2020-05-05ND
2021-01-12ND
2021-01-12ND
2021-01-12ND
2021-04-25ND
2021-04-25ND
2021-04-25ND
2021-04-25ND
2021-04-25ND
2021-04-25ND
2021-07-26ND
2021-07-26ND
2021-07-26ND
2021-10-25ND
2021-10-25ND
2021-10-25ND
2022-01-30ND
2022-01-30ND
2022-01-30ND
2022-04-10ND
2022-04-10ND
2022-04-10ND
2022-04-10ND
2022-04-13ND
2022-04-130.840 ppt
2022-07-11ND
2022-07-11ND
2022-07-11ND
2022-10-03ND
2022-10-03ND
2022-10-03ND
2023-01-16ND
2023-01-16ND
2023-01-16ND
2023-04-10ND
2023-04-10ND
2023-04-10ND
2023-04-10ND
2023-04-10ND
2023-04-10ND
2023-07-17ND
2023-07-17ND
2023-08-28ND
2023-10-09ND
2023-10-09ND
2023-11-15ND