Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 8, 2025
The
escalating
environmental
concern
over
secondary
microplastics
(SMPs)
stems
from
their
physicochemical
evolution
primary
(PMPs),
yet
the
contribution
of
varying
transformations
to
ultimate
risks
remains
unknown.
In
this
study,
a
photomechanical
degradation
process
was
employed
convert
sunscreen-derived
(SDMPs)
into
SDMPs.
While
mechanical
caused
physical
fragmentation,
photodegradation
induced
both
and
chemical
alterations,
introducing
surface
oxidation,
bond
scission,
cross-linking
Employing
combination
alkaline
digestion
pyrolysis
GC-MS
techniques,
it
observed
that
fragmentation
photooxidation
led
heightened
intracellular
sequestration
MPs.
Although
bioaccumulated
SDMPs
could
be
indicated
by
enlarged
lysosomes
fragmented
mitochondria,
toxicity
at
cellular
level
primarily
driven
post-photodegradation.
A
nontargeted
analysis
employing
high-resolution
mass
spectrometry
identified
46
plastic-associated
compounds
in
leachate,
with
photodegradation-induced
playing
crucial
role
dissociation
hydrophobic
additives
oxidative
conversion
leached
compounds.
leachate
exacerbated
photodegradation,
mitochondrial
serving
as
subcellular
biomarker,
indicative
toxicity.
This
study
elucidates
pivotal
augmenting
cytotoxicity
SDMPs,
shedding
light
on
intricate
interplay
between
risks.
Environmental Science Nano,
Год журнала:
2023,
Номер
11(1), С. 14 - 35
Опубликована: Ноя. 7, 2023
This
review
clarifies
the
translocation
of
zinc
oxide
nanoparticles
(ZnO
NPs)
in
plants,
reveals
molecular
mechanisms
toxicity
regulation,
and
emphasizes
potential
risks
composite
systems
NPs.
DEPIK,
Год журнала:
2023,
Номер
12(3), С. 259 - 273
Опубликована: Ноя. 17, 2023
Microplastics,
or
plastic
particles
smaller
than
5
mm,
are
a
growing
ecotoxicological
problem
for
both
human
health
and
aquatic
habitats.
Even
though
microplastic
pollution
affects
the
air,
water,
land
widely,
these
habitats
often
viewed
as
distinct
from
one
another
while
in
fact
they
tightly
related.
The
purpose
of
this
work
is
to
review
body
scientific
literature
on
studies
Indonesian
watershed
sediment.
Google
Scholar
has
identified
around
57
papers
about
that
were
published
between
2017
2023.
Papers
sediment
rivers,
lakes,
marine,
estuaries
categorized
further
based
(i)
their
occurrence
characterization,
(ii)
intake
by
effects
species,
(iii)
fate
transport
issues.
at
low
concentrations
10
μg/mL,
microplastics
cause
harmful
people
animals,
including
cytotoxicity,
immunological
response,
oxidative
stress,
barrier
characteristics,
genotoxicity.
When
marine
animals
eat
microplastics,
gastrointestinal
tract
physiology
changes,
also
experience
immune
system
depression,
differential
gene
expression,
growth
inhibition.
In
addition,
bioaccumulation
creatures'
tissues
may
harm
ecosystem
spread
birds.
Through
behavioural
changes
policy
such
imposing
taxes,
bans,
price
increases
carrier
bags,
usage
been
dramatically
decreased
8–85%
many
different
nations
across
globe.
strategy
minimizing
structured
like
an
upside-down
pyramid:
prevention
top,
then
reduction,
reuse,
recycling,
recovery,
and,
least
desirable
alternative,
disposal.Keywords:MicroplasticsSedimentIndonesia
WatersEnvironmental
RiskPollutant
Aquatic
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(3), С. 1484 - 1494
Опубликована: Янв. 10, 2024
The
environmental
impact
of
sunscreen
is
a
growing
concern,
yet
the
combined
effects
its
components
on
marine
animals
are
poorly
understood.
In
this
study,
we
investigated
sunscreen-extracted
zinc
oxide
nanoparticles
(nZnO)
and
microplastics
(MPs)
development
barnacle
larvae,
focusing
different
roles
played
by
primary
(PMPs)
secondary
(SMPs)
generated
through
phototransformation
PMPs.
Our
findings
revealed
that
lower
concentration
nZnO
(50
μg/L)
enhanced
molting
eye
in
while
higher
(500
inhibited
larval
growth.
Co-exposure
to
PMPs
had
no
significant
effect
development,
whereas
SMPs
mitigated
restricting
vivo
transformation
ionic
Zn.
Accumulated
reduced
gut
dissolution
up
40%,
lowering
acidity
85%
buffering
nZnO.
We
further
identified
rough-surfaced
Si-5
fragment
damaged
guts,
resulting
decreased
acidity.
Another
Si-32
resisted
discernible
effects.
study
presented
compelling
evidence
impacts
bioeffect
nZnO,
highlighting
complex
interactions
between
their
organisms.
