Chemosphere,
Journal Year:
2023,
Volume and Issue:
345, P. 140478 - 140478
Published: Oct. 19, 2023
This
study
investigated
the
toxicity
of
polyethylene
microplastics
(MPs;
<0.02
mm)
and
CuSO4,
alone
in
combination,
on
freshwater
crayfish
Pontastacus
leptodactylus.
In
this
study,
were
exposed
to
PE-MPs
(0.0,
0.5,
1
mg
L-1)
CuSO4·5H2O
for
a
period
28
days.
Next,
multi-biomarkers,
including
biochemical,
immunological,
oxidative
stress
indicators
analyzed.
Results
showed
that
co-exposure
CuSO4
resulted
increased
aspartate
aminotransferase
(AST),
alanine
(ALT),
lactate
dehydrogenase
(LDH),
decreased
alkaline
phosphatase
(ALP),
butyrylcholinesterase
(BChE),
gamma-glutamyl-transferase
(GGT).
Triglycerides,
cholesterol,
glucose,
albumin
content
also
increased.
Although
no
significant
change
was
observed
lysozyme
phenoloxidase
activities
co-exposed
0.5
L-1
MPs
their
significantly
other
experimental
groups.
Oxidative
parameters
hepatopancreas
indicated
superoxide
dismutase
(SOD),
glutathione
peroxidase
(GPx),
malondialdehyde
(MDA)
levels,
but
catalase
(CAT),
glucose
6-phosphate
(G6PDH),
cellular
total
antioxidant
(TAC).
sub-chronic
confirmed.
The
confirmed
found
higher
concentrations
led
more
severe
effects.
Co-exposure
primarily
compromised
endpoints,
showing
when
both
pollutants
present
concentrations.
POX,
LYZ,
ALP,
GGT,
LDH,
CAT
suppressed
by
MPs.
However,
synergistic
increase
measured
biomarkers
Environment International,
Journal Year:
2022,
Volume and Issue:
170, P. 107644 - 107644
Published: Nov. 17, 2022
With
the
global
spread
of
severe
acute
respiratory
syndrome
coronavirus-2
(SARS-CoV-2),
disposable
face
masks
(DFMs)
have
caused
negative
environmental
impacts.
DFMs
will
release
microplastics
(MPs)
and
nanoplastics
(NPs)
during
degradation.
However,
few
studies
reveal
process
MPs/NPs
from
in
natural
environment.
This
review
presents
current
knowledge
on
abiotic
biotic
degradation
DFMs.
Though
MPs
NPs
raised
serious
concerns
about
their
potentially
detrimental
effects
human
health,
little
attention
was
paid
to
impacts
health
DFM-derived
NPs.
The
potential
toxicity
mask-derived
MPs/NPs,
such
as
gastrointestinal
toxicity,
pneumotoxicity,
neurotoxicity,
hepatotoxicity,
reproductive
transgenerational
underlying
mechanism
be
discussed
present
study.
serve
carriers
toxic
chemicals
pathogens,
leading
bioaccumulation
adverse
biomagnification
by
food
chains.
Given
experiments
are
facing
ethical
issues
animal
cannot
completely
characteristics,
advanced
organoids
provide
promising
models
for
MP/NP
risk
assessment.
Moreover,
in-depth
investigations
required
identify
discarded
characterize
transportation
through
More
importantly,
innovative
approaches
eco-friendly
strategies
urgently
demanded
reduce
pollution.
Water,
Journal Year:
2022,
Volume and Issue:
14(24), P. 4086 - 4086
Published: Dec. 14, 2022
Microplastics
are
regarded
as
vectors
of
hazardous
contaminants
due
to
their
ability
adsorb
xenobiotic
chemicals.
This
has
led
increased
interest
in
the
risk
previously
neglected
microplastic
aquatic
environment.
Here,
we
assessed
possibility
transferring
chemical
microplastics
by
evaluating
adsorption
performance
(in)organic
pollutants
on
various
types
(polystyrene,
PS;
polyethylene
terephthalate,
PET;
high-density
polyethylene,
HDPE;
and
low-density
LDPE;).
Considering
toxicity
polarity
each
pollutant,
dyes
(BB9
RR120)
heavy
metals
(Cd(II),
Pb(II),
As(III),
As(V))
were
selected
for
experiments.
Dye
was
found
be
adsorbed
through
physical
adsorption.
The
capacity
RR120
BB9
highest
HDPE-1
LDPE-1,
respectively.
Additionally,
smaller
size
microplastics,
higher
amounts.
main
mechanism
And
dye
depends
Thus,
affected
more
condition
than
type
microplastics.
