Per- and Polyfluoroalkyl Substances (PFAS) in Consumer Products: An Overview of the Occurrence, Migration, and Exposure Assessment
Molecules,
Год журнала:
2025,
Номер
30(5), С. 994 - 994
Опубликована: Фев. 21, 2025
Per-
and
polyfluoroalkyl
substances
(PFASs)
have
been
widely
used
in
the
production
of
consumer
products
globally
due
to
excellent
water
oil
resistance
anti-fouling
properties.
The
multiple
toxic
effects
some
PFASs
also
pose
a
threat
human
health
ecosystem,
frequent
use
certain
increased
risk
exposure
PFASs.
More
data
on
occurrence,
concentration,
migration
is
urgently
needed
address
possible
risks
posed
by
products.
This
paper
reviews
PFAS
concentrations
found,
characteristics
known,
arising
from
several
types
over
last
five
years.
considered
here
include
food
contact
materials,
textiles,
disposable
personal
hygiene
influence
different
factors
process
these
are
summarized
discussed.
Additionally,
main
approaches
models
assessment
evaluated
summarized.
Current
challenges
future
research
prospects
this
field
discussed
with
view
providing
guidance
for
regulation
Язык: Английский
Per- and Poly-Fluoroalkyl Substances, and Organophosphate Flame Retardants in the Upper Yangtze River: Occurrence, Spatiotemporal Distribution, and Risk Assessment
Toxics,
Год журнала:
2025,
Номер
13(2), С. 116 - 116
Опубликована: Фев. 1, 2025
Contaminants
of
Emerging
Concern
(CECs),
including
per-
and
polyfluoroalkyl
substances
(PFASs)
organophosphate
flame
retardants
(OPFRs),
have
raised
global
concerns
due
to
their
persistence,
bioaccumulation
potential,
toxicity.
This
study
presents
a
comprehensive
investigation
the
occurrence,
spatiotemporal
distribution,
potential
sources,
ecological
human
health
risks
associated
with
18
PFASs
9
OPFRs
in
surface
waters
upper
Yangtze
River,
China.
The
water
samples
were
collected
from
main
stream
five
major
tributaries
(Min,
Jinsha,
Tuo,
Jialing,
Wu
Rivers)
2022
2023.
total
concentration
ranged
16.07
927.19
ng/L,
17.36
190.42
respectively,
consistently
higher
observed
compared
tributaries.
Ultra-short-chain
(e.g.,
TFMS)
halogenated
TCPP)
predominant
compounds,
likely
originating
industrial
discharges,
wastewater
effluents,
other
anthropogenic
sources.
Ecological
risk
assessments
indicated
low-to-moderate
at
most
sampling
sites,
near
discharge
points.
Human
evaluations
suggested
negligible
non-carcinogenic
but
identified
carcinogenic
OPFR
exposure
for
adults
specific
locations,
particularly
Leshan
city.
highlights
importance
understanding
fate
impacts
provides
valuable
insights
developing
targeted
pollution
control
strategies
management
measures.
Язык: Английский
Review on the sources, distribution and treatment of per- and polyfluoroalkyl substances in global groundwater
Environmental Research,
Год журнала:
2025,
Номер
275, С. 121387 - 121387
Опубликована: Март 12, 2025
Язык: Английский
Per- and Polyfluoroalkyl Ether Acid (PFEA) Concentrations in Indoor Dust are Higher in Homes Closer to a Fluorochemical Manufacturing Facility
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 31, 2025
Concentrations
of
48
per-
and
polyfluoroalkyl
substances
(PFAS)
were
measured
in
settled
dust
samples
from
65
homes
GenX
Exposure
Study
participants
residing
near
a
fluorochemical
manufacturing
facility
North
Carolina.
Eight
PFAS
[perfluoro(3,5-dioxahexanoic)
acid
(aka
PFO2HxA),
perfluoro-2-(perfluoromethoxy)propanoic
(PMPA),
perfluoro-2-ethoxypropanoic
(PEPA),
6:2
fluorotelomer
phosphate
diester
(6:2
diPAP),
6:2/8:2
(6:2/8:2
perfluoropropanoic
(PFPrA),
perfluorodecanesulfonic
(PFDS),
2-(N-ethyl-perfluorooctanesulfonamido)acetic
(N-EtFOSAA)]
detected
>90%
the
samples.
Dust
concentrations
six
ether
acids
(PFEAs)
produced
at
(PEPA,
PMPA,
perfluoro-2-methoxyacetic
(PFMOAA),
PFO2HxA,
hexafluoropropylene
oxide
dimer
(HFPO-DA
aka
GenX),
ethanesulfonic
acid,
2-[1-[difluoro(1,2,2,2-tetrafluoroethoxy)methyl]-1,2,2,2-
tetrafluoroethoxy]-1,1,2,2-tetrafluoro-
(Nafion
byproduct
2)
significantly
negatively
associated
with
home
distance
facility.
Homes
closer
to
had
higher
summed
mass
12
targeted
PFEAs
(∑12PFEAs)
but
not
∑48PFAS.
Trifluoroacetic
(TFA),
an
ultrashort
chain
PFAS,
three
diPAPs
(8:2/6:2
diPAP,
8:2
diPAP)
major
contributors
∑48PFAS,
these
compounds
did
show
relationships
distance.
Based
on
our
previous
findings
associating
well
water
human
serum,
current
indicate
could
be
important
exposure
source.
Язык: Английский
Anthropogenic PFAS or Natural Products? Natural Products Cause Overestimation of C2–C5 Perfluoroalkyl Carboxylic Acid Levels
Zhile Pan,
S. Li,
Qiyu Zhao
и другие.
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 30, 2025
The
increasing
environmental
concentrations
of
C2-C5
perfluoroalkyl
carboxylic
acids
(PFCAs)
have
raised
concerns
about
their
global
threat.
However,
analytical
interference
has
been
reported
to
cause
overestimation
PFCA
concentrations.
Recently,
we
discovered
that
a
human
metabolite,
γ-carboxyethyl
hydroxychroman,
caused
the
perfluoropentanoic
acid
(PFPeA)
concentration
by
454
times
due
its
similar
retention
time
and
ion
pair
mass
with
those
PFPeA
in
low-resolution
spectrometry.
Using
this
mechanism,
developed
semitargeted
screening
method
identify
all
possible
interferents
PFCAs
surface
water,
groundwater,
wastewater,
soil,
fish,
serum
samples.
Nine
were
discovered,
resulting
2.18-454
overestimate
concentration.
Through
289
samples,
most
recognized
as
natural
products,
possibly
originating
from
metabolism.
Adjustment
mobile
phase
acidic
or
use
pentafluorophenyl
column
can
eliminate
interferences.
Retrospective
against
both
41
studies
16
countries
significant
public
data
repository
revealed
prevalence
interferents.
Our
findings
highlighted
necessity
re-evaluate
subsequently
migration,
transformation,
bioconcentration
properties
accurately
understand
significance.
Язык: Английский
National Assessment of PFAS in Landfill Leachate in China: Non-Negligible Ultrashort-Chain Components and Socioeconomic Impacts
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 20, 2025
The
persistent
leaching
of
per-
and
polyfluoroalkyl
substances
(PFAS)
from
landfills
poses
significant
environmental
risks,
particularly
to
surrounding
water
systems.
However,
information
regarding
the
occurrence
fate
PFAS
in
across
country
is
limited.
Here
we
investigated
distribution
profiles
sources
60
landfill
leachate
31
provinces
mainland
China,
showing
total
levels
∑PFAS
3.05
×
103
1.58
105
ng/L.
Structural
equation
modeling
revealed
that
socioeconomic
conditions
directly
influenced
residue
leachate.
Furthermore,
these
conditions,
conjunction
with
climatic
factors,
chemical
composition
leachate,
thereby
indirectly
affecting
PFAS.
estimated
emission
flux
China
was
419
kg/year,
ultrashort-chain
congeners
as
predominant,
omnipresent
congeners,
accounting
for
37%.
Our
study
first
provided
comprehensive
evidence
demonstrate
were
important
which
would
help
understand
ecological
risks
emerging
PFAS,
especially
eventually
promoting
conduction
effective
monitoring
pollution
control
strategies
Язык: Английский