Perfluorononanoic acid (PFNA)
Hartford
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 | ND | 1 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 8 | 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 |
|---|---|---|
| 2018-08-07 | GWEF1808071500GGA | ND |
| 2019-05-14 | GWNT1905141400GGA | ND |
| 2019-05-14 | GWNT1905141410GGA | ND |
| 2019-05-14 | GWNT1905141420GGA | ND |
| 2020-12-09 | 20120861 PFAS TP456 | ND |
| 2021-07-12 | ND | |
| 2021-07-12 | 21G0381-04 | ND |
| 2021-10-04 | ND | |
| 2021-10-04 | 21J0074 | ND |
| 2022-01-24 | 2201B11-01 | ND |
| 2022-01-24 | ND | |
| 2022-04-18 | 2204C94-01 | ND |
| 2022-04-18 | ND | |
| 2022-07-25 | 22G0993-02 PFAS | ND |
| 2022-07-25 | ND | |
| 2022-10-05 | 2210499-01 | ND |
| 2022-10-05 | ND | |
| 2023-01-09 | ND | |
| 2023-01-09 | 23A0325-01 | ND |