Perfluorononanoic acid (PFNA)
Brooklyn Center
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 13 | 0 | ND |
| 2023 | ND | 26 | 0 | ND |
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 |
|---|---|---|
| 2014-01-28 | K1401044-001 | ND |
| 2014-01-28 | K1401044-005 | ND |
| 2014-01-28 | K1401044-003 | ND |
| 2015-06-25 | K1507081-005 | ND |
| 2015-06-25 | K1507081-003 | ND |
| 2015-06-25 | K1507081-001 | ND |
| 2021-06-09 | 21F0561-01 | ND |
| 2022-06-01 | 22F0085-01 | ND |
| 2022-06-01 | 22F0085-03 | ND |
| 2022-06-01 | 22F0085-04 | ND |
| 2022-06-01 | 22F0085-05 | ND |
| 2022-11-02 | 22K0191-05 | ND |
| 2022-11-02 | 22K0191-01 | ND |
| 2022-11-02 | 22K0191-02 | ND |
| 2022-11-02 | 22K0191-03 | ND |
| 2022-11-02 | 22K0191-04 | ND |
| 2022-11-02 | 22K0191-06 | ND |
| 2022-11-02 | 22K0191-07 | ND |
| 2022-11-02 | 22K0191-08 | ND |
| 2022-11-02 | 22K0191-09 | ND |
| 2023-03-16 | 23C0815-04 | ND |
| 2023-03-16 | 23C0815-01 | ND |
| 2023-03-16 | 23C0815-03 | ND |
| 2023-03-16 | 23C0815-06 | ND |
| 2023-03-30 | 23C1366-01 | ND |
| 2023-03-30 | 23C1366-02 | ND |
| 2023-03-30 | 23C1366-03 | ND |
| 2023-03-30 | 23C1366-04 | ND |
| 2023-06-06 | 23F0377-02 | ND |
| 2023-06-06 | 23F0377-01 | ND |
| 2023-06-06 | 23F0377-03 | ND |
| 2023-06-06 | 23F0377-04 | ND |
| 2023-06-06 | 23F0377-05 | ND |
| 2023-06-06 | 23F0377-06 | ND |
| 2023-06-06 | 23F0377-07 | ND |
| 2023-07-05 | 23G0104-02 | ND |
| 2023-07-05 | 23G0104-01 | ND |
| 2023-09-13 | 23I0615-06 | ND |
| 2023-09-13 | 23I0615-07 | ND |
| 2023-09-13 | 23I0615-08 | ND |
| 2023-09-13 | 23I0615-09 | ND |
| 2023-09-13 | 23I0615-05 | ND |
| 2023-09-13 | 23I0615-04 | ND |
| 2023-09-13 | 23I0615-03 | ND |
| 2023-09-13 | 23I0615-02 | ND |
| 2023-09-13 | 23I0615-01 | ND |