As
emerging
contaminants,
microplastic
contamination
of
the
coastal
ecosystems
is
one
world’s
most
pressing
environmental
concerns.
Coastal
sediments
have
been
polluted
to
varying
degrees
by
microplastics,
and
ubiquitous
presence
microplastics
in
poses
a
threat
marine
organisms.
However,
there
currently
no
ecological
risk
assessment
towards
aquatic
biota
sediments.
This
study
for
first
time
established
new
procedure
evaluate
toxicity
on
based
probabilistic
(PRA)
concept.
The
choice
Zhelin
Bay
as
case
site
was
its
severe
pollution
status.
average
content
21.71
items/10
g
dry
weight,
these
consisted
52
different
species.
Microplastics
presented
five
forms,
with
film
form
being
main
composition,
particle
sizes
ranging
from
100-500
μm.
Correlation
analysis
(CA)
reveals
that
significant
negative
correlations
were
found
between
abundance,
Al2O3
SiO2.
PRA
concept
shows
surface
had
low
probability
(3.48%)
toxic
effects
biota.
Marine Pollution Bulletin,
Год журнала:
2024,
Номер
201, С. 116191 - 116191
Опубликована: Фев. 29, 2024
Management
of
plastic
litter
in
Marine
Protected
Areas
(MPAs)
is
expensive
but
crucial
to
avoid
harms
critical
environments.
In
the
present
work,
an
open-source
numerical
modelling
chain
proposed
estimate
seasonal
pathways
and
fates
macro-plastics,
hence
support
effective
planning
implementation
sea
beach
cleaning
operations.
The
approach
applied
nearshore
region
that
includes
MPA
Capo
Milazzo
(Italy).
A
sensitivity
analysis
on
influence
tides,
wind,
waves
river
floods
over
year
indicates
seasonality
only
slightly
affects
location
extension
macro-plastic
accumulation
zones,
operations
should
be
performed
autumn.
Instead,
rivers
distribution
for
optimal
interventions
coastal
area.
Marine Pollution Bulletin,
Год журнала:
2023,
Номер
194, С. 115395 - 115395
Опубликована: Авг. 26, 2023
Estuaries
can
act
as
plastic
retention
hotspots,
but
the
hydrodynamic
controls
on
are
not
well
understood.
This
study
investigates
of
river-sourced
buoyant
plastics
in
a
well-mixed
estuary,
Waitematā
Estuary,
using
validated
numerical
simulations
floats
with
different
tides,
winds,
and
freshwater
discharge.
The
proportion
grounded
shore
all
seven
is
higher
than
60
%
over
90
five
after
ten
days.
<20
leave
estuarine
mouth
any
simulations.
An
increase
two
orders
magnitude
discharge
doubles
likelihood
for
to
reach
lower
estuary.
However,
we
find
increased
lateral
circulation
towards
results
similar
proportions
grounding
(90
%)
low
cases.
These
findings
challenge
conventional
view
that
preferentially
enter
open
ocean
high
river
The Science of The Total Environment,
Год журнала:
2024,
Номер
951, С. 175613 - 175613
Опубликована: Авг. 19, 2024
The
ubiquity
of
microplastics
(MP)
across
all
ecosystems
raises
concerns
about
their
potential
harm
to
the
environment
and
living
organisms.
Sediments
are
a
MP
sink,
reflecting
long-term
accumulation
historical
anthropogenic
impacts.
Three
