Microplastic
(MP)
pollution
has
become
a
significant
global
concern
in
soil
systems.
The
spatial
risk
of
MPs
soils,
the
cascading
effects
climate,
human
activities,
and
air
quality,
ecosystem
gradients
from
natural
habitats,
agricultural
lands,
urban
soils
remain
largely
unknown.
We
compile
comprehensive
data
set
more
than
3000
site-year
field
observations
across
agricultural,
natural,
ecosystems
China.
By
using
interpretable
machine
learning
models
statistical
approaches,
our
findings
reveal
that
approximately
4.32%
China
face
potential
ecological
risks
MPs,
with
being
most
vulnerable
(e.g.,
14.7%
are
at
risk).
Climate
factors
temperature
precipitation),
activities
plastic
film
use),
quality
concentrations
atmospheric
particulate
matter)
have
been
identified
as
primary
drivers
MP
risk.
climate
(p
<
0.001)
significantly
impact
soils.
This
work
highlights
urgent
need
for
coordinated
management
to
mitigate
posed
by
especially
lands.
Environment & Health,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 14, 2025
The
release
of
micro/nanoplastics
(MNPs)
from
biodegradable
plastics
in
gastrointestinal
environments
due
to
photoaging,
along
with
their
associated
mechanisms
and
potential
cytotoxicity,
is
largely
unknown.
Here,
we
show
that
poly(lactic
acid)/poly(butylene
adipate-co-terephthalate)
(PLA/PBAT)
films
undergo
ultraviolet
resulting
increased
surface
roughness
a
higher
quantity
MNPs
on
the
surface.
This
aging
process
involves
generation
carbon-
oxygen-centered
free
radicals,
chain
scission,
formation
oxidation
products
hydroxyl
carbonyl
groups.
These
can
be
released
under
water
shear
force,
significantly
increasing
normalized
mass
loss
aged
approximately
0.128
mg/cm2
(18
times
than
unaged
water).
In
environment,
further
increases
about
0.196
(28
higher),
likely
enzymatic
digestion
ion-swelling
effects.
MNPs,
primarily
composed
PLA,
are
smaller
carry
more
negative
charges
conditions.
THP-1
cell
model,
these
affect
viability
dose-dependent
manner.
obtained
through
ultrafiltration,
compared
those
collected
via
centrifugation,
display
broader
size
distribution
induce
pronounced
toxicity
cells,
an
EC50
243
mg/L.
Preliminary
comparative
analysis
indicates
PLA/PBAT-derived
present
risks
comparable
to,
or
greater
than,
conventional
plastic
MNPs.
findings
underscore
hazards
plastics.
Plastic
residues
have
emerged
as
a
significant
challenge
in
the
environmental
sector.
Microplastics,
which
are
plastic
fragments
smaller
than
5
mm,
ability
to
disperse
through
atmosphere,
oceans,
and
land,
posing
serious
threat
human
health
by
accumulating
food
chain.
However,
their
minuscule
size
makes
it
difficult
effectively
remove
them
from
environment
using
current
technologies.
This
work
provides
comprehensive
overview
of
recent
advancements
microplastic
detection
removal
For
methods,
we
discuss
commonly
used
techniques
such
microscopic
analysis,
thermal
mass
spectrometry,
spectroscopic
energy
spectrometry.
We
also
emphasize
importance
integrating
various
analytical
data-processing
achieve
efficient
nondestructive
microplastics.
In
terms
strategies,
explored
innovative
methods
technologies
for
extracting
microplastics
environment.
These
include
physical
like
filtration,
adsorption,
magnetic
separation;
chemical
coagulation–flocculation–sedimentation
photocatalytic
conversion;
bioseparation
activated
sludge
biodegradation.
highlight
promising
potential
converting
contaminants
into
high-value
chemicals.
Additionally,
identify
technical
challenges
suggest
future
research
directions
advocate
development
unified
standardized
guide
further
on
transformation
Toxics,
Journal Year:
2025,
Volume and Issue:
13(3), P. 143 - 143
Published: Feb. 20, 2025
Wetlands
are
one
of
the
most
crucial
ecosystems
for
regulating
carbon
sequestration
and
mitigating
global
climate
change.
However,
disturbance
to
dynamics
caused
by
microplastics
(MPs)
in
wetlands
cannot
be
overlooked.
This
review
explores
impacts
MPs
on
cycles
within
wetland
ecosystems,
focusing
underlying
physicochemical
microbial
mechanisms.
The
accumulation
sediments
can
severely
destabilize
plant
root
functions,
disrupting
water,
nutrient,
oxygen
transport,
thereby
reducing
biomass
development.
Although
may
temporarily
enhance
storage,
they
ultimately
accelerate
mineralization
organic
carbon,
leading
increased
atmospheric
dioxide
emissions
undermining
long-term
sequestration.
A
critical
aspect
this
process
involves
shifts
community
structures
driven
selective
colonization
MPs,
which
affect
decomposition
methane
production,
thus
posing
a
threat
greenhouse
gas
emissions.
Notably,
dissolved
matter
derived
from
biodegradable
promote
photoaging
coexisting
enhancing
release
harmful
substances
aged
further
impacting
microbial-associated
due
disrupted
metabolic
activity.
Therefore,
it
is
imperative
deepen
our
understanding
adverse
effects
mechanisms
health
cycles.
Future
strategies
should
incorporate
regulation
ecological
engineering
techniques
develop
effective
methodologies
aimed
at
maintaining
sustainable
capacity
affected
MP
contamination.
