Know Your Environment. Protect Your Health.

Perfluorononanoic acid (PFNA)

Pratt, City of

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
20230.326 ppt191ND - 6.20 ppt

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
2023-03-06102088PND
2023-03-06102089PND
2023-03-06102090PND
2023-03-06102091PND
2023-03-06102092PND
2023-03-07102097PND
2023-03-07102096PND
2023-03-07102095PND
2023-03-07102094PND
2023-03-07102093PND
2023-09-18107741PND
2023-09-18107745PND
2023-09-18107744PND
2023-09-18107743PND
2023-09-18107742PND
2023-09-19107746PND
2023-09-19107747P6.20 ppt
2023-09-19107748PND
2023-09-19107750PND