Environmental Science & Technology Letters,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 25, 2024
Ultrashort-chain
per-
and
polyfluoroalkyl
substances
(PFASs)
are
an
emerging
class
of
contaminants
that
remain
underexplored
in
environmental
research.
This
study
examines
their
distribution
Australian
drinking
tap
water,
waters,
wastewaters
(n
=
63)
using
nontarget
analysis
via
high-resolution
mass
spectrometry.
Thirteen
ultrashort-chain
PFASs
were
identified,
including
novel
compounds
such
as
perfluoroalkane
sulfinate
(PFPSi),
hydrogen-substituted
perfluoroalkyl
carboxylate
(H-PFCA),
chloro-perfluoroalkanesulfonate
(Cl-PFSA),
bis-perfluoroalkyl
sulfonamide
(bis-FASIs).
Perfluoropropanesulfonic
acid
(PFPrS)
was
the
most
prevalent,
detected
83%
surface,
groundwater,
wastewater
samples,
67%
water
samples
from
major
cities.
Concentrations
PFPrS
perfluoroethanesulfonic
(PFEtS)
ranged
<0.02
to
8000
ng/L.
sulfonamides
(FASAs)
sulfates
(PFA-OS)
predominantly
found
wastewater.
These
findings
highlight
widespread
presence
systems
underscore
need
for
ongoing
monitoring
research
due
potential
ecological
human
health
impacts.
provides
essential
baseline
data
could
inform
future
regulatory
measures
management
strategies.
