Aquatic hazard, bioaccumulation and screening risk assessment for 6:2 fluorotelomer sulfonate.
This study assessed the aquatic toxicity and bioaccumulation potential of 6:2 fluorotelomer sulfonate (6:2 FTSA). Acute and chronic aquatic hazard endpoints indicate 6:2 FTSA is not classified for aquatic hazard according to GHS or European CLP legislation. The aqueous bioconcentration factors for 6:2 FTSA were <40 and the dietary assimilation efficiency, growth corrected half-life and dietary biomagnification factor (BMF) were 0.435, 23.1d and 0.295, respectively. These data indicate that 6:2 FTSA is not bioaccumulative in aquatic organisms. Comparison of PNECs with the reported surface water concentrations (non-spill situations) suggests low risk to aquatic organisms from 6:2 FTSA. Future studies are needed to elucidate the biotic and abiotic fate of commercial AFFF surfactants in the environment.
E.I. du Pont de Nemours and Company, Inc., Haskell Global Centers for Health and Environmental Sciences, Newark, DE 19711, USA. Electronic address: robert.a.hoke@dupont.com.
Robert A
RA
Hoke
E.I. du Pont de Nemours and Company, Inc., Haskell Global Centers for Health and Environmental Sciences, Newark, DE 19711, USA.
Barbra D
BD
Ferrell
E.I. du Pont de Nemours and Company, Inc., Haskell Global Centers for Health and Environmental Sciences, Newark, DE 19711, USA.
Tim
T
Ryan
E.I. du Pont de Nemours and Company, Inc., Haskell Global Centers for Health and Environmental Sciences, Newark, DE 19711, USA.
Terry L
TL
Sloman
E.I. du Pont de Nemours and Company, Inc., Haskell Global Centers for Health and Environmental Sciences, Newark, DE 19711, USA.
John W
JW
Green
E.I. du Pont de Nemours and Company, Inc., Haskell Global Centers for Health and Environmental Sciences, Newark, DE 19711, USA.
Diane L
DL
Nabb
E.I. du Pont de Nemours and Company, Inc., Haskell Global Centers for Health and Environmental Sciences, Newark, DE 19711, USA.
Robert
R
Mingoia
E.I. du Pont de Nemours and Company, Inc., Chemicals & Fluoroproducts, Wilmington, DE 19805, USA.
Robert C
RC
Buck
E.I. du Pont de Nemours and Company, Inc., Chemicals & Fluoroproducts, Wilmington, DE 19805, USA.
Stephen H
SH
Korzeniowski
D000476:Alkanesulfonates / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity*; D000818:Animals; D059001:Aquatic Organisms / Q000378:metabolism*; D006207:Half-Life; D018570:Risk Assessment; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity*
D000476:Alkanesulfonates; D014874:Water Pollutants, Chemical
Aquatic hazard; Bioaccumulation; Fluorotelomer; Risk assessment; Sulfonate