Problems to fetuses breastfed babies and children including low birth weight early puberty and immune system problems. Physical and Chemical Properties of PFOS and PFOA ATSDR 2015.
Kunacheva C Fujii S Tanaka S Seneviratne S T Lien N P H Nozoe Science And Technology United Nations Environment Programme Environmental Problem
On their introduction in the 1940s per- and polyfluoroalkyl substances PFASs were considered inert molecules since they lacked a chemically active group.
PFOS. PFOS and PFOA stand for perfluorooctane sulfonate and perfluorooctanoic acid respectively. These are also calledperfluorochemicals PFCs. In fact early occupational studies revealed elevated levels of fluorochemicals including PFOS and PFOA in the blood of exposed industrial workers but cited no ill health effects.
These elements have a negative effect on the health of those exposed to them. For now the International Agency for Research on Cancer has classified PFOA as possibly carcinogenic. This group of chemicals is commonly used in a wide range of industrial processes and is found in many consumer products.
Perfluoroalkyl and polyfluoroalkyl substances PFAS are a group of man-made chemicals that include Perfluorooctane Sulfonate PFOS and Perfluorooctanoic Acid PFOA. This fact sheet developed by the US. EPA 2016b 2016c Property PFOS Free Acid PFOA Free Acid Chemical Abstracts Service CAS number 1763-23-1 335-67-1 Physical description physical state at room temperature and atmospheric pressure.
Used as early as the 1940s PFAS were once thought of as beneficial because of their ability to. Both are fluorinated organic chemicals part of a larger family of compounds referred to as perfluoroalkyl substances PFASs. PFOS and PFOA are man-made chemicals belonging to the group known as Per- and poly-fluoroalkyl substances.
There is a reason to believe that exposure to high levels of PFOs and PFOA may also lead to impaired fetal development skeletal issues cardiovascular problems testicular cancer kidney cancer thyroid cancer. PFOS and Groundwater PFOS Perfluorooctane sulfonic acid PFOS is one of a group of related chemicals known as perfluorinated alkylated substances PFAS. Environmental Protection Agency EPA Federal Facilities Restoration and Reuse Office FFRRO provides a brief summary of the contaminant Perfluorooctane Sulfonate PFOS and Perfluorooctanoic Acid PFOA.
Human health concerns associated with PFASs. Perfluorooctanesulfonic acid PFOS conjugate base perfluorooctanesulfonate is an anthropogenic human-made fluorosurfactant now regarded as a global pollutantPFOS was the key ingredient in Scotchgard a fabric protector made by 3M and numerous stain repellentsIt was added to Annex B of the Stockholm Convention on Persistent Organic Pollutants in May 2009. PFOS and PFOA are still used EPA 2016b 2016c 2016f.
These substances are synthetic compounds that. PFOS PFOA and related chemicals Per- and poly-fluoroalkyl substances have been used and remain in the environment around several sites in NSW. Testicular and kidney cancer.
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