Know Your Environment. Protect Your Health.

Perfluorohexane sulfonate (PFHXS)

Halifax Water Department

Perfluorohexane sulfonate is a member of a group of perfluorinated chemicals used in many consumer products. 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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

24

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
20201.94 ppt990.622 ppt - 3.91 ppt
20211.98 ppt64ND - 3.90 ppt
20221.81 ppt1814ND - 4.61 ppt
20232.70 ppt65ND - 4.68 ppt
20240.617 ppt61ND - 3.70 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.001 ppt

The EWG Health Guideline of 0.001 ppt for perfluorohexane sulfonate was defined by EPA's toxicity value published in the Integrated Risk Information System's toxicological review. This health guideline harm to the developing immune system.

EPA Maximum Contaminant
Level (MCL): 10 ppt

ppt = parts per trillion

All test results

Date Result
2021-10-12ND
2021-10-12ND
2021-10-122.41 ppt
2021-10-121.75 ppt
2021-11-163.90 ppt
2021-11-163.81 ppt
2022-01-062.43 ppt
2022-01-062.19 ppt
2022-01-06ND
2022-01-06ND
2022-02-170.998 ppt
2022-04-060.689 ppt
2022-04-063.66 ppt
2022-04-06ND
2022-04-061.75 ppt
2022-05-043.50 ppt
2022-06-212.25 ppt
2022-07-181.22 ppt
2022-07-18ND
2022-07-180.614 ppt
2022-07-182.40 ppt
2022-08-162.94 ppt
2022-09-124.61 ppt
2022-10-173.26 ppt
2023-01-03ND
2023-01-032.80 ppt
2023-01-031.21 ppt
2023-04-054.10 ppt
2023-07-053.43 ppt
2023-10-024.68 ppt
2024-01-103.70 ppt
2024-01-10ND
2024-01-10ND
2024-01-10ND
2024-07-09ND
2024-07-09ND