Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
56(23), P. 16789 - 16800
Published: Nov. 10, 2022
Direct
emissions
from
fluorochemical
manufactory
are
an
important
source
of
per-
and
polyfluoroalkyl
substances
(PFASs)
to
the
environment.
In
this
study,
a
wide
range
PFASs,
including
8
legacy
long-chain
perfluoroalkyl
carboxylic
acids
(PFCAs),
40
emerging
were
investigated
through
target
screening
in
multienvironmental
matrices
China.
Indoor
dust
was
most
polluted
matrix,
wherein
52
PFASs
detected,
median
concentration
PFCA
276
ng/g.
A
high
level
short-chain
PFAS
total
suspended
particles
(median
=
416
ng/m3)
effluent
(Σ48PFAS
212
μg/L)
will
undoubtedly
increase
burden
on
surrounding
Twenty-four
industrial
byproducts
ascertained
be
generated
during
electrochemical
fluorination
(ECF)
process,
eight
fluorinated
alternatives
considered
produced
product
development.
Twelve
quantified
for
first
time
working
environments.
Perfluoropropane
sulfonic
acid,
perfluoro
(2-ethoxyethane)
acid
(PFEESA),
2-perfluorohexyl
ethanoic
abundant
alternatives,
with
levels
1187–17204
ng/g
dust.
Significant
positive
correlations
between
ECF-related
products
indicate
that
detected
values
strongly
connected
source.
Hierarchical
cluster
analysis
further
manifests
their
affiliation.
Our
findings
raise
need
investigations
(including
report
PFAS,
such
as
PFEESA,
environment)
which
may
released
production
process
manufactories.
Journal of Hazardous Materials,
Journal Year:
2023,
Volume and Issue:
447, P. 130854 - 130854
Published: Jan. 22, 2023
This
study
aims
to
identify
sources
of
per-
and
polyfluoroalkyl
substances
(PFAS)
wastewater
treatment
plants
(WWTPs)
reveals
previously
undescribed
variability
in
daily
PFAS
concentrations
by
measuring
their
occurrence
WWTP
influent
each
hour
over
the
course
a
week.
∑50PFAS
ranged
between
89
±
38
on
Monday
173
110
ng
L-1
Friday,
where
perfluoroalkyl
carboxylic
acids
(PFCAs),
disubstituted
phosphate
esters
(diPAPs),
sulfonic
(PFSAs)
contributed
largest
proportion
overall
weekly
37%,
30%,
17%
respectively.
Simultaneous
pulse
events
perfluorooctanesulfonic
acid
(PFOS;
400
L-1)
perfluoroheptanesulfonic
(PFHpS;
18
indicate
significant
industrial
or
commercial
waste
discharge
that
persists
for
up
3
h.
The
minimum
number
hourly
grab
samples
required
detect
variation
PFOS
PFHpS
are
7
9
respectively,
indicating
high
degree
days.
Overall,
risk
sampling
bias
from
is
given
more
frequent
campaigns
must
be
balanced
against
cost
analysis
carefully
avoid
mischaracterisation
mass
flux
receiving
surface
waters.
Chemosphere,
Journal Year:
2023,
Volume and Issue:
334, P. 138925 - 138925
Published: May 15, 2023
Landfill
facilities
are
a
major
source
of
release
per-
and
polyfluoroalkyl
substances
(PFAS)
to
the
surrounding
environment.
In
this
study,
landfill
leachate
treated
in
conventional
wastewater
treatment
plant
PFAS-contaminated
groundwater
were
subjected
suspect
screening
analysis
semi-quantification
using
total
oxidizable
precursor
(TOP)
assay
liquid
chromatography
coupled
high-resolution
mass
spectrometry
(LC-HRMS).
TOP
assays
yielded
expected
results
for
legacy
PFAS
their
precursors,
but
showed
no
discernible
evidence
degradation
perfluoroethylcyclohexane
sulfonic
acid.
also
produced
significant
presence
precursors
both
groundwater,
majority
had
probably
degraded
into
after
many
years
landfill.
Suspect
identified
28
PF
AS,
which
six
not
included
targeted
method
with
confidence
level
(CL)
≥3.
Semi-quantification
these
compounds
very
low
concentrations,
indicating
that
they
as
great
concern
target
PFAS.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
908, P. 168438 - 168438
Published: Nov. 12, 2023
Per-
and
polyfluoroalkyl
substances
(PFAS)
concentrations
were
investigated
in
hepatic
tissue
of
four
dolphin
species
stranded
along
the
south-east
coast
Australia
between
2006
2021;
Burrunan
(Tursiops
australis),
common
bottlenose
truncatus),
Indo-Pacific
aduncus),
short-beaked
(Delphinus
delphis).
Two
populations
represented
dataset
have
highest
reported
global
population
∑25PFAS
(Port
Phillip
Bay
median
9750
ng/g
ww,
n
=
3,
Gippsland
Lakes
3560
8),
which
50–100
times
higher
than
other
here;
(50
9),
(80
1),
(61
12).
Also
included
results
is
individual
(19,500
ww)
PFOS
(18,700
concentrations,
at
almost
30
%
any
Cetacea
globally.
Perfluorooctane
sulfonate
(PFOS)
was
above
method
reporting
limits
for
all
samples
(range;
5.3–18,700
ww),
constituted
contribution
to
overall
∑PFAS
burdens
with
47
99
profile
across
dataset.
The
exceed
published
tentative
critical
(677–775
ng/g)
42
dolphins
90
critically
endangered
dolphin.
This
research
reports
first
time
novel
emerging
PFASs
such
as
6:2
Cl-PFESA,
PFMPA,
PFEECH
FBSA
marine
mammals
southern
hemisphere,
high
detection
rates
It
study
show
occurrence
PFAS
tissues
multiple
from
Australasian
region,
demonstrating
inshore
dolphins.
Finally,
it
provides
key
baseline
knowledge
potential
exposure
bioaccumulation
compounds
within
coastal
environment
Australia.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
273, P. 116141 - 116141
Published: Feb. 23, 2024
As
a
nondestructive
means
of
environmental
monitoring,
bird
feathers
have
been
used
to
analyze
levels
per-
and
polyfluoroalkyl
substances
(PFASs)
in
specific
environments.
In
this
study,
feather
samples
from
10
waterbird
species
around
Poyang
Lake
were
collected,
pretreatment
method
for
PFASs
was
optimized.
The
results
showed
that
combined
cleaning
using
ultrapure
water
n-hexane
effectively
removed
external
PFASs.
Twenty-three
legacy
emerging
identified
the
waterbirds,
which
hexafluoropropylene
oxides
(HFPOs),
chlorinated
ether
sulfonates
(Cl-PFESAs),
sodium
p-perfluorinated
noneoxybenzene
sulfonate
(OBS)
reported
first
time,
with
their
concentrations
ranging
0.060–2.4
ng·g−1
dw,
0.046–30
lower
than
detection
limit
30
respectively.
Compound-
species-specific
bioaccumulation
observed
different
species,
suggesting
PFAS
types
can
be
monitored
through
selection
species.
Moreover,
most
PFCAs
(except
perfluorobutyric
acid),
perfluorooctane
(PFOS),
sulfonamide
(FOSA)
significantly
positively
correlated
δ15N
(p
<
0.05),
while
HFPOs,
Cl-PFESAs,
OBS
had
significant
positive
correlations
δ13C.
This
indicates
is
affected
by
trophic
level,
feeding
habits,
foraging
area.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
912, P. 169084 - 169084
Published: Dec. 4, 2023
Per-
and
Polyfluoroalkyl
substances
(PFAS)
are
increasingly
detected
in
wildlife
present
concerning
unknown
health
risks.
While
there
is
a
growing
body
of
literature
describing
PFAS
seabird
species,
knowledge
from
temperate
Southern
Hemisphere
regions
lacking.
Little
penguins
(Eudyptula
minor)
can
nest
forage
within
heavily
urbanised
coastal
environments
hence
may
be
at
risk
exposure
to
pollutants.
We
analysed
scat
contaminated
nesting
soils
(n
=
50)
17
colonies
lutruwita/Tasmania
for
16
PFAS,
plasma
samples
45)
nine
colonies,
three
eggs
49
PFAS.
14
across
the
sample
types
with
perfluorooctanesulfonic
acid
(PFOS)
perfluorohexanesulfonic
(PFHxS)
most
commonly
detected.
Mean
concentration
PFOS
was
2.56
±
4.3
ng/mL
(
