Perfluorononanoic acid (PFNA)
Blaine
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 | ND | 3 | 0 | ND |
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 2 | 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 | 4 | 0 | ND |
| 2022 | ND | 13 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
| 2024 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2013-10-30 | K1312039-003 | ND |
| 2013-10-30 | K1312039-005 | ND |
| 2013-10-30 | K1312039-001 | ND |
| 2014-04-07 | K1403546-001AM | ND |
| 2014-04-07 | K1403546-005AM | ND |
| 2014-04-07 | K1403546-003AM | ND |
| 2014-05-27 | K1405568-001AM | ND |
| 2014-05-27 | K1405568-003AM | ND |
| 2015-07-20 | K1508068-001 | ND |
| 2015-07-20 | K1508068-003 | ND |
| 2021-10-06 | 21J0248-02 | ND |
| 2021-10-06 | 21J0248-04 | ND |
| 2021-10-06 | 21J0248-03 | ND |
| 2021-10-06 | 21J0248-01 | ND |
| 2022-05-31 | 22E2300-04 | ND |
| 2022-05-31 | 22E2300-03 | ND |
| 2022-05-31 | 22E2300-01 | ND |
| 2022-08-31 | 22I0026-05 | ND |
| 2022-08-31 | 22I0026-04 | ND |
| 2022-08-31 | 22I0026-03 | ND |
| 2022-08-31 | 22I0026-01 | ND |
| 2022-09-21 | 22I1865-01 | ND |
| 2022-09-30 | 22I2372-02 | ND |
| 2022-09-30 | 22I2374-01 | ND |
| 2022-09-30 | 22I2374-02 | ND |
| 2022-09-30 | 22I2374-03 | ND |
| 2022-10-25 | 22J1116-01 | ND |