Back to Search
Start Over
Per- and polyfluoroalkyl substances in the environment.
- Source :
-
Science (New York, N.Y.) [Science] 2022 Feb 04; Vol. 375 (6580), pp. eabg9065. Date of Electronic Publication: 2022 Feb 04. - Publication Year :
- 2022
-
Abstract
- Over the past several years, the term PFAS (per- and polyfluoroalkyl substances) has grown to be emblematic of environmental contamination, garnering public, scientific, and regulatory concern. PFAS are synthesized by two processes, direct fluorination (e.g., electrochemical fluorination) and oligomerization (e.g., fluorotelomerization). More than a megatonne of PFAS is produced yearly, and thousands of PFAS wind up in end-use products. Atmospheric and aqueous fugitive releases during manufacturing, use, and disposal have resulted in the global distribution of these compounds. Volatile PFAS facilitate long-range transport, commonly followed by complex transformation schemes to recalcitrant terminal PFAS, which do not degrade under environmental conditions and thus migrate through the environment and accumulate in biota through multiple pathways. Efforts to remediate PFAS-contaminated matrices still are in their infancy, with much current research targeting drinking water.
- Subjects :
- Animals
Biodegradation, Environmental
Drinking Water chemistry
Environmental Exposure
Environmental Restoration and Remediation
Halogenation
Humans
Water Pollution, Chemical analysis
Environmental Pollutants analysis
Environmental Pollutants chemistry
Environmental Pollutants toxicity
Fluorocarbon Polymers analysis
Fluorocarbon Polymers chemistry
Fluorocarbon Polymers toxicity
Fluorocarbons analysis
Fluorocarbons chemistry
Fluorocarbons toxicity
Subjects
Details
- Language :
- English
- ISSN :
- 1095-9203
- Volume :
- 375
- Issue :
- 6580
- Database :
- MEDLINE
- Journal :
- Science (New York, N.Y.)
- Publication Type :
- Academic Journal
- Accession number :
- 35113710
- Full Text :
- https://doi.org/10.1126/science.abg9065