Know Your Environment. Protect Your Health.

Perfluorodecanoic acid (PFDA)

Delancy Street Foundation (castle)

Perfluorodecanoic acid (PFDA) is a member of a group of perfluorinated chemicals used in many consumer products. PFDA and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

 

19

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20211.15 ppt65ND - 1.59 ppt
20220.562 ppt63ND - 1.35 ppt
20230.141 ppt71ND - 0.984 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.006 ppt

The EWG Health Guideline of 0.006 ppt for PFDA was defined by EPA's toxicity value published in the Integrated Risk Information System’s toxicological review. This health guideline protects against harm to the immune system and harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Lab ID Result
2021-05-28CI40956PFAS1.32 ppt
2021-06-21CI59282PFAS1.23 ppt
2021-08-31CJ18182PFAS1.52 ppt
2021-09-16CJ30591PFASND
2021-11-24CL85244PFAS1.23 ppt
2021-12-16CK00417PFAS1.59 ppt
2022-03-07CK816661.05 ppt
2022-03-22CK915161.35 ppt
2022-05-25CL38342ND
2022-09-16CM33905PFAS0.970 ppt
2022-11-29CM93339ND
2022-12-13CN03737ND
2023-02-02CN34870ND
2023-06-06CO20666PFASND
2023-06-20CO32816PFAS0.984 ppt
2023-08-22CO81340PFASND
2023-09-13CO98818PFASND
2023-12-11CP64637PFASND
2023-12-21CP73311PFASND