The Science of The Total Environment,
Год журнала:
2024,
Номер
942, С. 173808 - 173808
Опубликована: Июнь 5, 2024
High
concentrations
of
microplastic
(MP)
particles
have
been
reported
in
the
Arctic
Ocean.
However,
studies
on
high-resolution
lateral
and
vertical
transport
MPs
from
European
waters
to
are
still
scarce.
Here,
we
provide
information
about
compositions
surface,
subsurface,
deeper
(<
1
m,
~
4
17–1679
m)
collected
at
18
stations
six
transects
along
Norwegian
Coastal
Current
(NCC)
using
an
improved
Neuston
Catamaran,
COntinuos
MicroPlastic
Automatic
Sampling
System
(COMPASS),
situ
pumps,
respectively.
FTIR
microscopy
spectroscopy
were
applied
measure
MP
concentration,
polymer
composition,
size
distribution.
Results
indicate
that
small
microplastics
(SMPs,
<300
μm)
varied
considerably
(0–1240
m−3)
within
water
column,
with
significantly
higher
surface
(189
subsurface
(38
compared
(16
m−3).
Furthermore,
average
concentration
SMPs
samples
was
four
orders
magnitude
than
abundance
large
(LMPs,
>300
μm),
overall,
<50
μm
account
for
>80
%
all
detected
MPs.
no
statistically
significant
geographical
patterns
observed
SMP
surface/subsurface
seawaters
between
sampling
transects,
suggesting
a
relatively
homogeneous
horizontal
distribution
upper
ocean
NCC/Norwegian
Atlantic
(NwAC)
interface.
The
Lagrangian
particle
dispersal
simulation
model
further
enabled
us
assess
large-scale
Northern
Arctic.
The Science of The Total Environment,
Год журнала:
2022,
Номер
858, С. 160043 - 160043
Опубликована: Ноя. 8, 2022
The
aquatic
ecosystems
of
the
world
are
highly
burdened
with
microplastics
(MPs;
particles
<5
mm).
There
is
a
great
need
for
better
understanding
patterns
MP
pollution
across
catchments
and
rivers
different
sizes,
anthropogenic
pressures
hydrogeomorphological
features.
In
this
study,
we
investigated
concentrations
including
their
characteristics
(polymer
type,
shape,
size
colour),
distribution
in
water
sediments
two
hydrogeomorphologically
small-scale
(<
800
km2),
namely
Kamniška
Bistrica
(KB)
Ljubljanica
(LJ),
Slovenia.
main
objective
study
was
to
gain
how
WWTP
effluents
catchment
urbanisation
together
diversity
natural
hydrogeomorphology,
affect
quantity
quality
pollutants
smaller
catchments.
Significantly
mean
were
found
columns
(KB:
59
±
16
items
m-3;
LJ:
31
14
m-3),
but
not
22
20
kg-1;
23
25
kg-1).
A
longitudinal
gradient
increasing
particle
concentration
observed
both
sediment
samples
Polyethylene
(PE)
polypropylene
(PP)
dominated
all
samples.
Fibres
predominant
column
samples,
while
fragments
more
common
mostly
coloured,
most
them
than
2
mm
critical
evaluation
results
previous
studies
suggest
that
(anthropogenic
pressures,
size,
climate,
etc.),
hydrogeomorphology
river
(sediment
discharge,
flow
velocity
sampling
location
along
river,
sampled
compartment
(water,
sediment),
method,
hydrometeorological
at
time
sampling,
important
factors
other
characteristics.
Heliyon,
Год журнала:
2023,
Номер
9(1), С. e13070 - e13070
Опубликована: Янв. 1, 2023
Pollution-induced
neurotoxicity
is
of
high
concern.
This
pilot
study
investigated
the
potential
relationship
between
presence
microplastics
(MPs)
in
brain
180
wild
fish
(Dicentrarchus
labrax,
Platichthys
flesus,
Mugil
cephalus)
from
a
contaminated
estuary
and
activity
acetylcholinesterase
(AChE)
enzyme.
MPs
were
found
9
samples
(5%
total),
all
them
D.
labrax
collected
summer,
which
represents
45%
this
species
that
season
(20).
Seventeen
recovered
samples,
with
sizes
ranging
8
to
96
μm.
Polyacrylamide,
polyacrylic
acid
one
biopolymer
(zein)
identified
by
Micro-Raman
spectroscopy.
Fish
showed
lower
(p
≤
0.05)
AChE
than
those
where
not
found.
These
findings
point
contribution
induced
long-term
exposure
pollution,
stressing
need
further
studies
on
topic
increase
'One
Health'
protection.
