Perfluorononanoic acid (PFNA)
Nauvoo
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 | 3 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 7 | 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 |
|---|---|---|
| 2021-03-11 | 4853247 | ND |
| 2021-03-31 | 4865757 | ND |
| 2021-03-31 | 4865758 | ND |
| 2022-05-04 | FE01490-01 | ND |
| 2022-05-04 | FE01490-03 | ND |
| 2022-09-27 | FI05274-03 | ND |
| 2022-10-26 | FJ05000-01 | ND |
| 2022-10-26 | FJ05000-03 | ND |
| 2023-01-30 | GA04786-01RE2 | ND |
| 2023-01-30 | GA04786-03RE2 | ND |
| 2023-05-30 | GE05326-01 | ND |
| 2023-08-15 | GH03380-01 | ND |
| 2023-08-15 | GH03380-03 | ND |
| 2023-10-26 | GJ04933-01 | ND |
| 2023-10-26 | GJ04933-03 | ND |