Journal of Environmental Management,
Год журнала:
2025,
Номер
375, С. 124359 - 124359
Опубликована: Фев. 1, 2025
The
extensive
use
and
application
of
recycled
organics,
including
biosolids
compost,
has
been
considered
as
an
effective
waste
management
approach
to
reduce
landfills.
However,
concerns
have
raised
about
the
presence
microplastics
(MPs)
in
these
organics
their
subsequent
transfer
soils.
Although
MPs
widely
documented,
our
knowledge
occurrence
characteristics
processed
organic
such
compost
is
still
limited.
present
study
aimed
investigate
abundance,
potential
sources
(>25
μm)
samples
collected
across
eleven
sites
with
different
processing
systems
Australia.
This
includes
digestate
from
anaerobic
digestion
rapidly
dehydrated
food
waste.
MPs,
mainly
polyethylene,
polypropylene
polyester,
were
found
all
concentrations
ranging
1500
16,000
MP/kg
dry
weight.
majority
fell
within
smaller
size
range
25-500
μm.
Using
concentration
(size
range,
morphology,
density)
detected
mass
abundance
was
estimated
be
between
7
760
mg/kg
We
also
that
5.2
×
1010
6.2
1012
MP/year
could
transferred
land
via
findings
this
showed
compostable
bags
a
source
some
samples.
provides
first
evidence
Australia
emphasises
need
more
comprehensively
understand
fate
during
composting
processes,
contribution
soil
MP
contamination,
impacts
on
biota.
Environment International,
Год журнала:
2024,
Номер
193, С. 109109 - 109109
Опубликована: Ноя. 1, 2024
Micro/Nano
plastics
(MNPs)
pollutants
are
widespread
in
the
environment,
raising
significant
concerns
about
their
biosafety.
Emerging
studies
indicate
that
urinary
system
is
a
primary
accumulation
site
for
MNPs,
leading
to
severe
tissue
and
functional
damage.
This
review
aims
summarize
recent
research
on
potential
hazards
MNPs
may
pose
system,
highlighting
mechanisms
of
toxicity
current
state
knowledge.
Studies
have
shown
enter
human
body
through
drinking
water,
food
chain,
inhalation,
skin
contact.
They
penetrate
bloodstream
via
digestive,
respiratory,
systems,
subsequently
dispersing
various
organs,
including
system.
The
might
induce
cellular
oxidative
stress,
inflammation,
apoptosis,
autophagy,
"intestine-kidney
axis",
other
possible
toxic
mechanisms.
These
processes
could
disrupt
kidney
metabolic
functions
promote
fibrosis,
thereby
potentially
increasing
risk
diseases.
Despite
ongoing
research,
understanding
MNPs'
impact
remains
limited.
Therefore,
this
provides
comprehensive
overview
highlights
key
challenges,
outlines
future
directions.
It
offers
theoretical
basis
development
effective
protective
measures
policies.
Journal of Environmental Management,
Год журнала:
2025,
Номер
375, С. 124359 - 124359
Опубликована: Фев. 1, 2025
The
extensive
use
and
application
of
recycled
organics,
including
biosolids
compost,
has
been
considered
as
an
effective
waste
management
approach
to
reduce
landfills.
However,
concerns
have
raised
about
the
presence
microplastics
(MPs)
in
these
organics
their
subsequent
transfer
soils.
Although
MPs
widely
documented,
our
knowledge
occurrence
characteristics
processed
organic
such
compost
is
still
limited.
present
study
aimed
investigate
abundance,
potential
sources
(>25
μm)
samples
collected
across
eleven
sites
with
different
processing
systems
Australia.
This
includes
digestate
from
anaerobic
digestion
rapidly
dehydrated
food
waste.
MPs,
mainly
polyethylene,
polypropylene
polyester,
were
found
all
concentrations
ranging
1500
16,000
MP/kg
dry
weight.
majority
fell
within
smaller
size
range
25-500
μm.
Using
concentration
(size
range,
morphology,
density)
detected
mass
abundance
was
estimated
be
between
7
760
mg/kg
We
also
that
5.2
×
1010
6.2
1012
MP/year
could
transferred
land
via
findings
this
showed
compostable
bags
a
source
some
samples.
provides
first
evidence
Australia
emphasises
need
more
comprehensively
understand
fate
during
composting
processes,
contribution
soil
MP
contamination,
impacts
on
biota.
