|Title||Norwegian study finds scant information on PFHxS|
|Date||2018-02-23 AM 10:23:58||Hit||122|
Information on the global production and product specific uses of perfluorohexane sulfonic acid (PFHxS) is lacking, the Norwegian Environment Agency has said.
PFHxS is often used as a substitute for perfluorooctane sulfonate (PFOS), which has been restricted under the Stockholm Convention on persistent organic pollutants (POPs) since 2009.
Last year, Echa added PFHxS to the REACH candidate list because of very persistent and very bioaccumulative (vPvB) properties.
It has long-range transport potential and higher bioaccumulation in humans than PFOS, the Norwegian agency says in a report. Better information on worldwide manufacture and use of the substance is crucial for further evaluation of the risks it poses, it adds.
Uses and global quantities
The agency received responses from 30 global chemical companies to questions on the production and use of the chemical. Most indicated that they are either not producing or using any of the substances investigated, the report says.
PFHxS may be present in fire-fighting foams, food contact papers, waterproofing agents and cleaning and polishing products, either for intentional uses or as unintentional impurities from industrial production processes, the report says.
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