In
recent
years,
filamentous
algae
blooms
and
microplastic
pollution
have
become
two
major
ecological
environmental
problems
in
urban
river
systems.
However,
the
interaction
between
microplastics
(MPs)
has
not
been
clearly
studied
context
of
remediation.
Therefore,
aim
this
work
was
to
investigate
effect
fresh
algal
biochar
on
MPs
removal.
Microscope
images
revealed
that
could
interact
with
form
entanglement,
adhesion
encapsulation.
The
average
load
samples
14.1
±
5
items/g
dry
weight,
shape
were
mainly
fibrous
(72.1%
5%).
theoretical
maximum
adsorption
capacities
polystyrene
(PS-MPs)
by
raw
(A500)
magnetic
F3O4
(M2A500)
176.99
mg/g
215.58
mg/g,
respectively.
fact
M2A500
presented
higher
capacity
PS-MPs
attributed
π-complexation
Fe3O4
particles
PS-MPs.
Overall,
these
findings
provided
new
insights
into
use
for
situ
remediation
fluvial
pollution,
as
well
feasible
strategies
recycling
waste.
Marine Pollution Bulletin,
Год журнала:
2025,
Номер
212, С. 117572 - 117572
Опубликована: Янв. 18, 2025
Little
information
exists
on
the
interactions
between
microfibres
(MFs)
and
marine
macroalgae.
In
this
study,
translucent
green
seaweed,
Ulva
lactuca,
has
been
exposed
to
∼2
mg
L-1
suspensions
of
MFs
prepared
from
dryer
lint
under
controlled
conditions,
with
alga
surface
remaining
in
seawater
subsequently
counted
characterised.
were
mainly
<2
mm
cellulosic,
contained
various
additives
chemicals
used
textile
treatment.
Interactions
U.
lactuca
spatially
heterogeneous
but
correcting
for
pre-existent
surface,
mean
trapping
efficiencies
a
dry
mass
area
basis
252
mL
g-1
0.858
cm-2,
respectively.
Despite
heterogeneity,
there
was
evidence
differential
based
fibre
colour
length.
amphiphilic
algal
are
likely
both
hydrophobic
electrostatic
not
fully
reversible,
only
∼30
%
trapped
released
into
clean
seawater.
Associations
have
implications
transport,
fate
ecological
impacts
coastal
zone,
highlight
potential
harvested
seaweed
be
bioremediation.
Marine
and
freshwater
macrophytes
are
known
to
filter
off
microplastics
from
the
water
column;
however,
effects
of
microplastic
size
type
on
their
retention
by
different
species
have
yet
be
investigated.
Here
we
tested
sizes
types
microplastics,
introduced
under
two
flow
regimes
(vertical
deposition
in
still
lateral
a
unidirectional
current),
submerged
macrophyte
species,
Hydrilla
verticillata
Mayaca
fluviatilis,
using
ex
situ
experiments.
Microplastics
entrapment
efficiency
was
determined
calibrating
dry
weight
(DW)
plant
analysing
characteristics
each
via
comparison
leaf
outer-edge
perimeter-to-area
ratio
(P:A).
The
higher
than
moving
water.
had
greater
average
surface
area
retained
most
polyethylene
terephthalate
(PET)
800-1000
μm
both
(1.75±0.11
g)
vertical
(2.85±0.24
g).
Conversely,
M.
fluviatilis
P:A,
area,
high
cellulose
PET
600-800
(0.73±0.07
(0.92±0.159
Our
findings
highlight
influence
material
type,
morphology
conditions
determining
rate
macrophytes.
Biodiversitas Journal of Biological Diversity,
Год журнала:
2023,
Номер
24(6)
Опубликована: Июль 1, 2023
Abstract.
Patria
MP,
Kholis
N,
Anggreini
D,
Buyong
F.
2023.
Abundance
and
distribution
of
microplastics
in
seawater,
sediment,
macroalgae
sea
grapes
Caulerpa
racemosa
from
Semak
Daun
Island,
Jakarta
Bay,
Indonesia.
Biodiversitas
24:
3424-3430.
Microplastic
pollution
marine
ecosystems
poses
a
significant
global
concern,
specifically
regarding
the
security
food
derived
sea.
Macroalgae,
as
source
sea,
can
be
susceptible
to
contamination
by
microplastics.
This
research
assessed
abundance
forms
(Caulerpa
(Forssk.)
J.Agardh)
collected
Island
within
Seribu
National
Park.
Additionally,
impact
washing
stirring
on
microplastic
was
examined
macroalgae.
The
average
number
their
identification
showed
that
washed,
stirred,
NaOH-treated
samples
contained
an
3.28±0.31
particles/g,
5.06±0.59
2.0±0.81
respectively.
Furthermore,
were
detected
seawater
sediment
samples,
with
8.2±2.19
particles/L
15,200±4,932
particles/Kg,
Fragmented
predominant
form
macroalgae,
while
fibrous
dominated
samples.
Significant
differences
observed
between
washed
stirred
(p
=
0.009),
where
sample
exhibited
higher
reduction
percentage.
Microplastics
edible
indicated
potential
hazards
exposure
subsequent
accumulation
human
body.
