Marine Pollution Bulletin,
Journal Year:
2023,
Volume and Issue:
187, P. 114530 - 114530
Published: Jan. 12, 2023
Due
to
their
persistence
or
continuous
discharge,
toxic
substances
are
present
in
the
aquatic
environment,
and
can
bioaccumulate
biomagnify
food
web,
generating
a
significant
ecological
risk
threat
human
health.
The
study
assess
occurrence
tissue
(muscle,
liver,
stomach
gills)
distribution
of
59
anthropogenic
contaminants
emerging
concern
(CECs)
marine
fish
from
Brazil.
A
simpler
faster
analytical
methodology
based
on
vortex-assisted
matrix
solid-phase
dispersion
(VA-MSPD)
liquid
chromatography
coupled
tandem
mass
spectrometry
(LC-MS/MS)
was
developed
validated.
Limits
quantification
ranged
3.31
114
ng
g-1
dw
with
recovery
rates
between
60
140
%
relative
standard
deviation
below
20
%.
ultraviolet
filters
4-hydroxybenzophenone
(4HB)
(benzophenone-3
metabolite)
benzocaine
(Et-PABA),
antibacterial
salicylic
acid
were
frequently
accumulated
muscle
liver
at
concentrations
39.5
21.0
ngg-1
dw.
determined
resulted
be
lower
than
tolerable
daily
intake
recommended
by
European
Food
Safety
Authority
(EFSA).
Journal of Photochemistry and Photobiology A Chemistry,
Journal Year:
2023,
Volume and Issue:
439, P. 114621 - 114621
Published: Feb. 8, 2023
Avobenzone
(AV)
is
one
of
the
most
widely
used
UV-A
filter
compound
in
sunscreen
products
despite
showing
photoinstability
under
radiation.
Although
a
high
number
studies
have
focused
on
AV
different
organic
solvents,
much
less
data
are
available
its
ecotoxicological
aspect.
Despite
determination
exact
environmental
concentration
being
essential
for
both
risk
assessment
and
realistic
experiments,
methods
aimed
at
this
were
found
to
be
controversial
or
unsuitable.
In
present
study,
we
first
investigated
presence
tautomeric
forms
with
LC-MS,
identified
previously
undetermined
characteristic
parent
ions,
that
(environmental)
samples
summed
two
forms.
Photostability
experiments
UV-Vis
spectrophotometry
revealed
that,
aqueous
solutions,
mainly
photodegradation
photoisomerisation
occurs
neutral
pH,
while
processes
similar
extent
might
acidic
conditions
(pH=3).
Temperature
(10
vs.
25°C)
had
no
significant
effect
photostability
pH=3,
but
higher
temperature
contributed
faster
decrease
pH=7.
Freeze-thaw
stability
water
showed
an
extensive
degradation
AV.
Our
findings
call
attention
important
methodical
parameters
considerations
(e.g.,
seasonality,
sampling
time,
sample
preparation)
contribute
more
matrices.
Future
should
focus
investigating
known
photoproducts
solutions
determine
processes.
Marine Pollution Bulletin,
Journal Year:
2023,
Volume and Issue:
196, P. 115644 - 115644
Published: Nov. 1, 2023
This
study
aimed
to
assess
the
presence
of
21
UVFs
and
metabolites
in
coastal
regions
Iberian
Peninsula,
evaluate
their
environmental
risk,
identify
possible
influential
factors
affecting
measured
concentrations.
Sampling
was
carried
out
spring
summer
seasonal
variations.
were
detected
43
46
sampling
sites.
Only
5
found
above
LOD:
BP4,
OC,
BP3
BP1
BP8.
Samples
collected
Mar
Menor
had
greatest
variety
compounds
per
sample
highest
cumulative
The
risk
characterized
using
Risk
Quotients
(RQ).
showed
a
Low
2
sites
while
for
OC
RQ
indicated
Moderate
22
points.
variables
that
contribute
most
variation
are
population
density,
season,
whether
it
an
open
bay
or
not,
level
urbanization.
WWTPs
lower
influence.
Environmental Science and Pollution Research,
Journal Year:
2024,
Volume and Issue:
31(13), P. 20461 - 20476
Published: Feb. 20, 2024
Abstract
In
the
last
few
decades,
there
has
been
a
growing
interest
in
understanding
behavior
of
personal
care
products
(PCPs)
aquatic
environment.
this
regard,
aim
study
is
to
estimate
accumulation
and
effects
four
PCPs
within
clam
Ruditapes
philippinarum
.
The
selected
were
triclosan,
OTNE,
benzophenone-3,
octocrylene.
A
progressive
uptake
was
observed
maximum
concentrations
tissues
reached
at
end
exposure
phase,
up
levels
0.68
µg
g
−1
,
24
0.81
1.52
for
BP-3,
OC,
TCS,
respectively.
After
PCP
post-exposure
period,
removal
percentages
higher
than
65%.
estimated
logarithm
bioconcentration
factor
ranged
from
3.34
2.93,
concordance
with
lipophobicity
each
substance.
No
lethal
found
although
significant
changes
ethoxyresorufin
O-demethylase
activity,
glutathione
S-transferase
lipid
peroxidation,
DNA
damage.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(12), P. 5472 - 5482
Published: March 11, 2024
The
fate
of
selected
UV
filters
(UVFs)
was
investigated
in
two
soil
aquifer
treatment
(SAT)
systems,
one
supplemented
with
a
reactive
barrier
containing
clay
and
vegetable
compost
the
other
as
traditional
SAT
reference
system.
We
monitored
benzophenone-3
(BP-3)
its
transformation
products
(TPs),
including
benzophenone-1
(BP-1),
4,4′-dihydroxybenzophenone
(4DHB),
4-hydroxybenzophenone
(4HB),
2,2′-dihydroxy-4-methoxybenzophenone
(DHMB),
along
benzophenone-4
(BP-4)
avobenzone
(AVO)
all
involved
compartments
(water,
sediments,
biofilm).
barrier,
which
enhances
biochemical
activity
biofilm
development,
improved
removal
detected
UVFs
water
samples.
Among
UVFs,
only
4HB,
BP-4,
AVO
were
sediment
But
overall
retained
amounts
several
orders
magnitude
larger
than
those
dissolved.
These
quantitatively
reproduced
specifically
developed
simple
analytical
model
that
consists
mobile
compartment
an
immobile
compartment.
Retention
degradation
are
restricted
to
compartment,
where
absorption
simulated
well-known
compound-specific
Kow
values.
fact
observations,
metabolites
but
not
(mobile)
samples,
supports
validity.
results
imply
accumulation
ensures
significant
biodegradation
even
if
rates
very
low
suggest
our
experimental
findings
for
TPs
can
be
extended
hydrophobic
compounds.
Biofilms
act
accumulators
biodegraders
