Perfluorononanoic acid (PFNA)
Collingwood LLC Umh Ny
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | 0.394 ppt | 5 | 3 | ND - 0.850 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 |
|---|---|---|
| 2021-08-31 | 21090750-01PFA | ND |
| 2021-08-31 | 219090750-02PFAS | ND |
| 2021-12-15 | J1L0993-01PFO | ND |
| 2021-12-15 | J1L0993-02PFAS | ND |
| 2022-06-22 | S2F0535-01PFO | ND |
| 2022-07-26 | EHS2200035249-01PFAS | ND |
| 2022-07-26 | EHS2200035250-01PFAS | ND |
| 2023-03-28 | 410-121003-1PFO | 0.850 ppt |
| 2023-07-19 | 23071777-02PFO | 0.580 ppt |
| 2023-07-19 | 23071777-01PFO | 0.540 ppt |
| 2023-11-08 | 23110835-01PFOS | ND |
| 2023-11-08 | 2311840-01PFOS | ND |