| ADONA |
trade name for 4,8-dioxa-3H-perfluorononanoate |
| AFFF |
aqueous film forming foam |
| APFO |
ammonium perfluorooctanoate |
| ARAR |
applicable or relevant and appropriate requirement |
| BAF |
bioaccumulation factor |
| BCF |
bioconcentration factor |
| BSAF |
biota-sediment accumulation factor |
| BuFASA |
N-Butyl perfluoroalkane sulfonamide |
| BuFASE |
N-Butyl perfluoroalkane sulfonamido ethanols |
| BuFASAA |
N-Butyl perfluoroalkane sulfonamido acetic acid |
| CAA |
Clean Air Act |
| CAP |
chemical action plan |
| CAS |
Chemical Abstract Service |
| CNT |
carbon nanotubes |
| CWA |
Clean Water Act |
| CERCLA |
Comprehensive Environmental Response, Compensation, and Liability Act |
| CFR |
Code of Federal Regulations |
| CMC |
critical micelle concentrations |
| CSM |
conceptual site model |
| EAO |
Emergency Administrative Order |
| ECF |
electrochemical fluorination |
| EtFASA |
N-Ethyl perfluoroalkane sulfonamide |
| EtFASE |
N-Ethyl perfluoroalkane sulfonamido ethanol (var: N-Ethyl perfluoroalkane sulfonamide ethanol) |
| EtFASAA |
N-Ethyl perfluoroalkane sulfonamido acetic acid (var: N-Ethyl perfluoroalkane sulfonamide acetic acid) |
| EtFOSA |
N-Ethyl perfluorooctane sulfonamide |
| EtFOSE |
N-Ethyl perfluorooctane sulfonamido ethanol (var: N-Ethyl perfluorooctane sulfonamide ethanol) |
| FASA |
perfluoroalkane sulfonamide |
| FASE |
Perfluoroalkane sulfonamido ethanol (var: perfluoroalkane sulfonamide ethanol) |
| FASAA |
Perfluoroalkane sulfonamido acetic acid (var: perfluoroalkane sulfonamide acetic acid) |
| FFFP |
film forming fluoroprotein foam |
| FOSA, or PFOSA |
perfluorooctane sulfonamide |
| FOSAA |
perfluorooctane sulfonamido acetic acid (var: perfluorooctane sulfonamide acetic acid) |
| FOSE |
perfluorooctane sulfonamido ethanol (var: perfluorooctane sulfonamide ethanol) |
| FP |
fluoroprotein |
| FTA |
fire training area |
| FTCA |
fluorotelomer carboxylic acid |
| FTOH |
fluorotelomer alcohol |
| FTSA or FTS |
fluorotelomer sulfonate, fluorotelomer sulfonic acid |
| GAC |
granular activated carbon |
| GenX |
trade name for ammonium 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoate |
| IARC |
International Agency for Research on Cancer |
| ITRC |
Interstate Technology and Regulatory Council |
| IX |
ion exchange |
| LHA |
Lifetime Health Advisory |
| LNAPL |
light non-aqueous phase liquids |
| MCL |
Maximum Contaminant Level |
| MeFASA |
N-Methyl perfluoroalkane sulfonamide |
| MeFASAA |
N-Methyl perfluoroalkane sulfonamido acetic acid (var: N-methyl perfluoroalkane sulfonamide acetic acid) |
| MeFASE |
N-Methyl perfluoroalkane sulfonamido ethanol (var: N-methyl perfluoroalkane sulfonamide ethanol) |
| MeFOSA |
N-Methyl perfluorooctane sulfonamide |
| MF |
microfiltration |
| MSW |
municipal solid waste |
| OECD |
Organisation for Economic Co-operation and Development |
| NCOD |
National Contaminant Occurrence Database |
| NF |
nanofiltration |
| NTP |
National Toxicology Program |
| PAC |
powdered activated carbon |
| PASF |
perfluoroalkane sulfonyl fluoride |
| PBT |
persistent, bioaccumulative, and toxic |
| PFAA |
perfluoroalkyl acid |
| PFAS |
per- and polyfluoroalkyl substances |
| PFBA |
perfluorobutanoate, perfluorobutanoic acid, perfluorobutyrate, perfluorobutyric acid |
| PFBS |
perfluorobutane sulfonate, perfluorobutane sulfonic acid |
| PFC |
perfluorinated compound or perfluorochemical |
| PFCA |
perfluoroalkyl carboxylate, perfluoroalkyl carboxylic acid |
| PFDA |
perfluorodecanoate, perfluorodecanoic acid |
| PFDoA, or PFDoDA |
perfluorododecanoate, perfluorododecanoic acid |
| PFDoS, or PFDoDS |
perfluorododecane sulfonate, perfluorododecane sulfonic acid |
| PFDS |
perfluorodecane sulfonate, perfluorodecane sulfonic acid |
| PFHpA |
perfluoroheptanoate, perfluoroheptanoic acid |
| PFHpS |
perfluoroheptane sulfonate, perfluoroheptane sulfonic acid |
| PFHxA |
perfluorohexanoate, perfluorohexanoic acid |
| PFHxS |
perfluorohexane sulfonate, perfluorohexane sulfonic acid |
| PFNA |
perfluorononanoate, perfluorononanoic acid |
| PFNS |
perfluorononane sulfonate, perfluorononane sulfonic acid |
| PFOA |
perfluorooctanoate, perfluorooctanoic acid |
| PFOS |
perfluorooctane sulfonate, perfluorooctane sulfonic acid |
| PFOSA, or FOSA |
perfluorooctane sulfonamide |
| PFOSE |
perfluoroalkylsulfonamidoethanol |
| PFPA |
perfluorophosphonic acid |
| PFPeA |
perfluoropentanoate, perfluoropentanoic acid |
| PFPeS |
perfluoropentane sulfonate, perfluoropentane sulfonic acid |
| PFPiA |
perfluorophosphinic acid |
| PFSA |
perfluoroalkyl sulfonate, perfluoroalkane sulfonic acid |
| PFTeDA, or PFTA |
Perfluorotetradecanoic acid |
| PFTrDA, or PFTriA |
Perfluorotridecanoic acid |
| PFUnA, or PFUnDA |
perfluoroundecanoate, perfluoroundecanoic acid |
| PFUnS, or PFUnDS |
perfluoroundecane sulfonate, perfluoroundecane sulfonic acid |
| POP |
persistent organic pollutant |
| ppb |
parts per billion |
| ppm |
parts per million |
| ppt |
parts per trillion |
| PTFE |
polytetrafluoroethylene |
| PWS |
public water system |
| RBEL |
Risk-based Exposure Limit |
| RCRA |
Resource Conservation and Recovery Act |
| RML |
Removal Management Level |
| RO |
reverse osmosis |
| RSL |
Regional Screening Level |
| SDWA |
Safe Drinking Water Act |
| SNUR |
Significant New Use Rule |
| SPLP |
Synthetic Precipitation Leaching Procedure |
| TBC |
To-Be-Considered values |
| TCLP |
Toxicity Characteristic Leaching Procedure |
| TOP |
Total Oxidizable Precursor |
| TRRP |
Texas Risk Reduction Program |
| TSCA |
Toxic Substances and Control Act |
| UCMR |
Unregulated Contaminant Monitoring Rule |
| UF |
ultrafiltration |
| U.S.C. |
United States Code |
| USEPA |
United States Environmental Protection Agency |
| USDOD |
United States Department of Defense |
| WWTP |
Waste water treatment plant |