Perfluorononanoic acid (PFNA)
Alexandria
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 | 2 | 0 | ND |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 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 | 3 | 0 | ND |
| 2022 | ND | 40 | 0 | ND |
| 2023 | ND | 39 | 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 |
|---|---|---|
| 2013-08-07 | K1308314-001 | ND |
| 2013-12-10 | K1313525-001 | ND |
| 2021-09-27 | 21I1514-02 | ND |
| 2021-09-27 | 21I1514-01 | ND |
| 2021-09-27 | 21I1514-03 | ND |
| 2022-01-13 | 22A0481-02 | ND |
| 2022-01-13 | 22A0481-11 | ND |
| 2022-01-13 | 22A0481-10 | ND |
| 2022-01-13 | 22A0481-09 | ND |
| 2022-01-13 | 22A0481-08 | ND |
| 2022-01-13 | 22A0481-06 | ND |
| 2022-01-13 | 22A0481-01 | ND |
| 2022-01-13 | 22A0481-03 | ND |
| 2022-01-13 | 22A0481-04 | ND |
| 2022-01-13 | 22A0481-07 | ND |
| 2022-01-13 | 22A0481-05 | ND |
| 2022-04-14 | 22D0814-02 | ND |
| 2022-04-14 | 22D0814-11 | ND |
| 2022-04-14 | 22D0814-10 | ND |
| 2022-04-14 | 22D0814-09 | ND |
| 2022-04-14 | 22D0814-07 | ND |
| 2022-04-14 | 22D0814-03 | ND |
| 2022-04-14 | 22D0814-04 | ND |
| 2022-04-14 | 22D0814-05 | ND |
| 2022-04-14 | 22D0814-08 | ND |
| 2022-04-14 | 22D0814-06 | ND |
| 2022-07-26 | 22G1927-02 | ND |
| 2022-07-26 | 22G1927-11 | ND |
| 2022-07-26 | 22G1927-10 | ND |
| 2022-07-26 | 22G1927-09 | ND |
| 2022-07-26 | 22G1927-07 | ND |
| 2022-07-26 | 22G1927-03 | ND |
| 2022-07-26 | 22G1927-04 | ND |
| 2022-07-26 | 22G1927-05 | ND |
| 2022-07-26 | 22G1927-08 | ND |
| 2022-07-26 | 22G1927-06 | ND |
| 2022-10-10 | 22J0370-02 | ND |
| 2022-10-10 | 22J0370-10 | ND |
| 2022-10-10 | 22J0370-09 | ND |
| 2022-10-10 | 22J0370-08 | ND |
| 2022-10-10 | 22J0370-06 | ND |
| 2022-10-10 | 22J0370-03 | ND |
| 2022-10-10 | 22J0370-04 | ND |
| 2022-10-10 | 22J0370-07 | ND |
| 2022-10-10 | 22J0370-05 | ND |
| 2023-01-10 | 23A0296-03 | ND |
| 2023-01-10 | 23A0296-11 | ND |
| 2023-01-10 | 23A0296-10 | ND |
| 2023-01-10 | 23A0296-09 | ND |
| 2023-01-10 | 23A0296-07 | ND |
| 2023-01-10 | 23A0296-02 | ND |
| 2023-01-10 | 23A0296-04 | ND |
| 2023-01-10 | 23A0296-05 | ND |
| 2023-01-10 | 23A0296-08 | ND |
| 2023-01-10 | 23A0296-06 | ND |
| 2023-04-24 | 23D1407-02 | ND |
| 2023-04-24 | 23D1407-10 | ND |
| 2023-04-24 | 23D1407-08 | ND |
| 2023-04-24 | 23D1407-06 | ND |
| 2023-04-24 | 23D1407-04 | ND |
| 2023-04-24 | 23D1407-07 | ND |
| 2023-04-24 | 23D1407-03 | ND |
| 2023-04-24 | 23D1407-05 | ND |
| 2023-05-16 | 23E1947-02 | ND |
| 2023-07-11 | 23G0591-04 | ND |
| 2023-07-11 | 23G0591-05 | ND |
| 2023-07-11 | 23G0591-06 | ND |
| 2023-07-11 | 23G0591-01 | ND |
| 2023-07-11 | 23G0591-07 | ND |
| 2023-07-11 | 23G0591-02 | ND |
| 2023-07-11 | 23G0591-08 | ND |
| 2023-07-11 | 23G0591-09 | ND |
| 2023-07-11 | 23G0591-10 | ND |
| 2023-07-11 | 23G0591-03 | ND |
| 2023-10-09 | 23J0442-03 | ND |
| 2023-10-09 | 23J0442-04 | ND |
| 2023-10-09 | 23J0442-05 | ND |
| 2023-10-09 | 23J0442-06 | ND |
| 2023-10-09 | 23J0442-07 | ND |
| 2023-10-09 | 23J0442-08 | ND |
| 2023-10-09 | 23J0442-09 | ND |
| 2023-10-09 | 23J0442-10 | ND |
| 2023-10-09 | 23J0442-11 | ND |
| 2023-10-09 | 23J0442-02 | ND |