Perfluorononanoic acid (PFNA)
Sigel
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 | 9 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2021-02-25 | 4842215 | ND |
| 2021-02-25 | 4842216 | ND |
| 2021-03-23 | 4860488 | ND |
| 2021-05-05 | EE01349-01 | ND |
| 2021-05-05 | EE01349-03 | ND |
| 2021-07-06 | EG01139-01 | ND |
| 2021-07-29 | EG06098-01 | ND |
| 2021-11-04 | EK01385-01 | ND |
| 2021-11-04 | EK01385-03 | ND |
| 2022-01-04 | FA00770-01 | ND |
| 2022-01-04 | FA00770-03 | ND |
| 2022-04-12 | FD02451-01 | ND |
| 2022-07-13 | FG02663-01 | ND |
| 2022-10-03 | FJ00396-01 | ND |
| 2023-01-17 | GA03064-01 | ND |
| 2023-04-18 | GD03341-01 | ND |