The Minnesota Department of Health has started a review of PFHxA

October 14, 2020

For additional information see Minnesota Department of Health Chemicals Under Review website

On October 14, 2020, the Minnesota Department of Health has started a review of PFHxA (perfluorohexanoic acid, CAS 307-24-4) under the Drinking Water Contaminants of Emerging Concern program. This process is used to determine if a health-based guidance value for groundwater, air or other environmental media can be developed or updated. While PFHxA is listed on the Chemicals Under Review table (for at least 30 days from the date posted) interested parties can submit and discuss toxicity studies that are relevant to human health.

PFHxA is a six-carbon perfluorinated chemical and member of the class of compounds known as per- and polyfluoroalkyl substances (PFAS). PFHxA is a compound that results from the breakdown of chemicals used in greaseproofing for food contact materials and stain resistance in textiles, among other uses. PFHxA can also occur as an impurity in mixtures of PFAS used industrially and commercially. Like other perfluorinated compounds, PFHxA is extremely stable in the environment. PFHxA has been detected in ambient groundwater and drinking water in Minnesota, and in some human biomonitoring studies.