Environment International,
Journal Year:
2022,
Volume and Issue:
161, P. 107096 - 107096
Published: Jan. 21, 2022
Plastic
film
mulching
is
an
important
agricultural
technology
that
plays
a
critical
role
in
increasing
crop
yield
and
maintaining
soil
moisture.
However,
long-term
coverage
untimely
recovery
lead
to
large
amount
of
plastic
residues
soils.
This
decomposes
into
smaller
plastics
over
time,
which
can
reduce
sowing
quality,
destroy
the
structure,
have
adverse
effects
on
organisms.
In
this
study,
seasonal
variations
correlations
microplastics
cadmium
(Cd)
Wuxi
farmland
soils
Taihu
Lake,
China,
were
investigated
spring
winter.
The
mainly
form
films,
fibers,
debris
transparent
black
color.
Microplastic
abundance
reached
890
particles/kg
soil,
with
majority
(>72.5%)
being
0-500
μm.
Polyethylene
main
polymers,
accounting
for
>54.65%.
addition,
winter
was
significantly
correlated
Cd,
indicating
heavy
metals
present
risk
coexposure
Furthermore,
response
situ
earthworms
microplastic-Cd
pollution
revealed
be
used
as
vector
transfer
environment
may
accumulate
bodies
Multiomics
techniques
demonstrated
bacterial
community
structure
dysbiosis
metabolic
changes
under
microplastic
metal-contaminated
earthworm
casts
intestines
higher
than
samples.
These
results
reveal
potential
risks
from
entering
metal
ecosystems.
Microplastics
are
a
big
and
growing
part
of
global
pollution,
which
has
aroused
increasing
concern
in
recent
years
because
their
large
amount,
wide
distribution,
adverse
effects.
can
sorb
various
pollutants
from
aquatic
environments
act
as
vectors
pollutants.
Most
studies
mainly
focused
on
the
virgin
microplastics.
However,
microplastics
be
easily
colonized
by
microorganisms,
form
biofilm,
will
influence
behaviors
potential
risks
The
formation
biofilm
its
effects
properties
have
been
studied
before,
but
sorption
transport
behaviors,
for
pollutants'
transfer
not
reviewed.
In
this
paper,
role
biofilm-developed
was
thoroughly
analyzed
summarized.
First,
microplastics,
compositions
microorganisms
influencing
factors,
property
changes
after
attachment
Second,
onto
is
discussed.
Third,
vector
analyzed.
We
concluded
that
could
provide
unique
substrates
microorganisms.
Biofilm-developed
more
than
ones,
then
to
introduce
attached
organisms.
Ecotoxicology and Environmental Safety,
Journal Year:
2022,
Volume and Issue:
242, P. 113933 - 113933
Published: Aug. 3, 2022
In
the
more
than
100
years
since
invention
of
plastics,
various
plastic
polymers
have
been
developed
that
exhibit
different
characteristics
and
widely
used
in
production
life.
2020
alone,
nearly
400
million
tons
plastics
were
produced
globally.
However,
while
such
as
polyethylene
brings
us
convenience,
it
also
threatens
environmental
sustainability
human
health.
Due
to
insufficient
recycling
efficiency,
millions
pollutants
accumulate
terrestrial
or
marine
environments
each
year.
Polyethylene
is
elastic,
chemically
stable,
non-biodegradable,
traditional
disposal
methods
include
landfilling
incineration.
These
are
costly,
unsustainable,
further
increase
burden
on
environment.
Therefore,
recent
research
has
increasingly
focused
biodegradation
polyethylene.
this
work,
we
briefly
summarized
polyethylene's
properties
toxicity.
We
reviewed
advances
with
a
summary
abiotic
methods.
Finally,
proposed
brief
direction
study
aspect
toxicology
industrial
applications
decomposition
technology.
Frontiers in Environmental Science,
Journal Year:
2022,
Volume and Issue:
10
Published: March 9, 2022
Microplastics
are
<5
mm
in
size,
made
up
of
diverse
chemical
components,
and
come
from
multiple
sources.
Due
to
extensive
use
unreasonable
disposal
plastics,
microplastics
have
become
a
global
environmental
issue
aroused
widespread
concern
about
their
potential
ecological
risks.
This
review
introduces
the
sources,
distribution
migration
agricultural
soil
ecosystems.
The
effects
on
physicochemical
properties
nutrient
cycling
also
discussed.
can
alter
series
key
biogeochemical
processes
by
changing
characteristics,
resulting
activities
functions
microorganisms.
animals
plants,
combined
coexisting
pollutants
(organic
heavy
metals),
risks
human
health
Finally,
prevention
control
strategies
microplastic
pollution
ecosystems
put
forward,
knowledge
gaps
future
research
suggestions
given.
improves
understanding
behavior
ecosystems,
provides
theoretical
reference
for
better
assessment
microplastics.
