Microplastic pollution in the marine environment: Distribution factors and mitigation strategies in different oceans
Journal of Contaminant Hydrology,
Год журнала:
2025,
Номер
269, С. 104496 - 104496
Опубликована: Янв. 5, 2025
Язык: Английский
Analysis of Brazilian plastic waste management in the global context and case study of the City of Vitória, Espírito Santo
Environmental Science and Pollution Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 17, 2025
Язык: Английский
Impact of the Reynolds Numbers on the Velocity of Floating Microplastics in Open Channels
Water,
Год журнала:
2025,
Номер
17(4), С. 588 - 588
Опубликована: Фев. 18, 2025
Quantitatively
analyzing
the
factors
influencing
horizontal
migration
of
microplastics
(MPs)
in
water
bodies
and
understanding
their
movement
patterns
are
crucial
for
explaining
predicting
transport
principles
final
destinations.
This
study
used
nearly
spherical
polyethylene
(PE),
polypropylene
(PP),
polystyrene
(PS)
MPs
as
experimental
subjects.
By
tracking
motion
characteristics
through
video
recording,
we
established
relationships
among
Reynolds
number
(Re),
MP
density,
floating
velocity.
The
results
showed
that
Re
density
jointly
affect
drift
MPs.
velocity
significantly
increases
with
increase
shows
a
power
function
growth
trend.
difference
mainly
affects
dispersion
during
process.
Moreover,
coefficient
variation
(CV)
PP’s
increased
Re,
suggesting
is
more
random
discrete
than
PE
PS.
Ultimately,
fitted
to
equation
comprehensively
evaluate
relationship
between
velocity,
analysis
underscores
predominantly
influences
water,
while
chiefly
impacts
nature
motion.
Язык: Английский
Plastic contamination in fish digestive tracts in Amazonian rivers during a period of extreme low water
Journal of Fish Biology,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 25, 2025
Microplastics
(MPs)
are
frequently
detected
in
the
gastrointestinal
tracts
of
aquatic
organisms
worldwide.
We
studied
contamination
with
plastic
an
environment
and
fish
two
Amazonian
rivers
waters,
Rio
Negro
Solimões.
The
research
was
conducted
November/December
2023
during
low
water
season
a
year
drastically
decreased
level.
evaluated
abundance,
shape,
type,
size
as
well
polymer
type
MPs
compared
between
species
feeding
types.
amounts
were
0.25
±
0.05
0.78
0.19
pcs/L
Prato
canal
Vila
do
Janauacá,
respectively.
In
total,
128
individuals
belonging
to
different
types
(piscivorous,
planktivorous,
herbivorous,
invertivorous,
detritivorous,
omnivorous)
analysed
this
study,
84.0%
87.4%
containing
caught
from
found
no
statistical
relationship
length/weight
amount
or
sizes
parts.
dimensions
0.04-5.0
mm
digestive
fish.
There
average
3.3
2.9
2.8
2.1
particles
per
study
sites
difference
river
that
correspondingly
reflected
Solimões
fish,
plastics
on
larger
than
site.
At
Janauacá
site,
predatory
had
most
their
system,
while
canal,
plankton-eating
MPs.
Regarding
shape
ingested
by
fishes,
filaments,
followed
fragments.
majority
fibres
determined
be
polyamide
(nylon),
polyethylene
terephthalate
polypropylene.
Our
results
indicate
even
remote
environments
may
impacted
intensive
MP
infestation.
same
time,
higher
rainfall
levels,
concentration
is
expected
this,
turn,
can
lead
greater
It
has
been
observed
when
content,
more
end
up
especially
visual
foragers.
Язык: Английский
The impact of ecological protection policies evolution on spatial-temporal changes: evidence from Qiantang River Basin, China
Zhu Zhen,
Licheng Wang,
Danting Wang
и другие.
Environment Development and Sustainability,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 17, 2025
Язык: Английский
Impacts of Environmental Concentrations of Nanoplastics on Zebrafish Neurobehavior and Reproductive Toxicity
Toxics,
Год журнала:
2024,
Номер
12(8), С. 617 - 617
Опубликована: Авг. 21, 2024
Nanoplastics,
as
emerging
environmental
pollutants,
can
transport
contaminants
across
marine
environments,
polluting
pristine
ecosystems
and
being
ingested
by
organisms.
This
transfer
poses
a
severe
threat
to
global
aquatic
potentially
impacts
human
health
through
the
food
chain.
Neurobehavioral
reproductive
toxicity
are
critical
areas
of
concern
because
they
directly
affect
survival,
health,
population
dynamics
species,
which
have
cascading
effects
on
entire
ecosystem.
Using
zebrafish
model
organism,
we
investigated
toxic
concentrations
polystyrene
nanoplastics
(PS-NPs).
Behavioral
assessments,
including
novel
tank
test
open
field
test,
demonstrated
significant
neurobehavioral
changes,
indicating
increased
anxiety
depressive
behaviors.
A
pathological
analysis
brain
gonadal
tissues,
along
with
evaluations
biomarkers,
revealed
that
exposure
PS-NPs
leads
tissue
lesions,
inflammatory
responses,
oxidative
stress
activation,
hormone
level
disruptions,
damage.
Real-time
quantitative
PCR
studies
gene
expression
further
showed
disrupt
endocrine
regulation
pathways
brain-pituitary-gonadal
(BPG)
axis,
causing
sex-specific
differences.
These
findings
provide
crucial
insights
into
organisms
their
ecological
risks,
offering
theoretical
support
for
future
protection
pollutant
management
efforts.
Язык: Английский
Microplastics in global rivers: Sustainable practices
Sustainable Development,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 14, 2024
Abstract
Sustainable
Development
Goals
(SDGs)
call
for
implementing
sustainable
practices
by
2030,
but
their
effects
on
microplastic
pollution
over
time
are
limited.
Here,
we
aimed
to
understand
better
the
of
improved
centralized‐sanitation
and
reduced
production
consumption
point‐source
inputs
microplastics
into
rivers
from
2010
2100
with
a
10‐year
step
10,226
sub‐basins
globally.
We
developed
scenarios
implemented
them
MARINA‐Plastics
model.
Our
baseline
scenario
followed
“middle‐of‐the‐road”
socioeconomic
pathway,
where
global
(MIPs)
in
will
almost
triple
2100.
European
Asian
were
major
MIP
hotspots
past
whereas
Africa
join
future.
Better
may
reduce
MIPs
globally
long‐term
2100,
while
controlled
waste
generation
short‐term
2030.
insights
could
guide
policymaking
SDG
6
12.
argue
that
combined
short‐
long‐term.
Язык: Английский
Microplastic burial potential and ecological risks in mangrove forests of the Amazon River delta
The Science of The Total Environment,
Год журнала:
2024,
Номер
957, С. 177666 - 177666
Опубликована: Ноя. 23, 2024
Язык: Английский
A new filtration system for extraction and accurate quantification of microplastics
Analytical Methods,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
The
analysis
of
microplastics
is
crucial
due
to
their
widespread
occurrence
and
significant
impact
as
environmental
pollutants.
Appropriate
extraction
analytical
techniques
are
necessary
evaluate
the
abundance,
dispersal,
effects
microplastics.
In
this
context,
filtration
step
extract
from
solution
media
indispensable
for
quantifying
accurately.
Usually,
a
pretreatment
procedure
such
density
separation
or
solvent
employed
before
filtration.
Nevertheless,
adsorption
microplastic
particles
onto
glassware
surface
known
occur
careful
rinsing
inevitable
suitable
recovery
rate.
study
presents
novel
device
developed
easy
use
increase
liquid
samples.
Fluorescent
polyethylene
(PE)
were
used
examine
by
optical
microscopy
pyrolysis-gas
chromatography/mass
spectrometry
(Py-GC/MS).
conventional
system
(CFS)
exhibited
lower
(45.1
±
7.9%,
Язык: Английский