Microplastic
pollutants
in
lakes
can
introduce
a
series
of
ecological
and
environmental
problems,
mapping
the
sources
microplastics
is
key
to
solving
lake
microplastic
pollution.
In
this
study,
atmospheric
samples
collected
from
6
sampling
sites
Wuliangsuhai
Lake
March
June
2021
were
analyzed,
deposition
fluxes
measured,
simulated
using
HYSPLIT
model.
The
results
showed
that
average
flux
was
(3371
±
1423)
n/d·m2
;
at
order
ML-3
>
ML-5
ML-6
ML-2
ML-4
ML-1;
shapes
included
fibrous,
fragmented,
lumpy,
blocks;
colors
transparent,
black,
blue,
red,
green,
yellow;
species
polypropylene,
polyethylene,
rayon,
polyethylene
terephthalate,
polystyrene,
natural
fibers.
According
basic
characteristics
backward
trajectories,
primarily
attributable
transportation
external
large
cities,
with
small
portion
surrounding
local
environment.
study
provide
theoretical
basis
for
other
inland
as
well
prevention
control
pollution,
which
great
significance
traceability
pollutants.
Case Studies in Chemical and Environmental Engineering,
Год журнала:
2024,
Номер
9, С. 100622 - 100622
Опубликована: Янв. 9, 2024
Information
on
microplastic
pollution
in
lentic
systems
is
scarce
many
Asian
countries,
including
Vietnam.
This
study
investigated
the
status
and
characteristics
of
seven
urban
lakes
Da
Nang
City,
The
two
surveys
were
conducted
during
dry
wet
seasons.
results
showed
that
concentrations
surface
waters
ranged
from
293.3
±
23.1–6510.0
380.4
366.7
23.1–1143.3
110.2
items
m−3
seasons,
respectively,
which
considered
a
moderate
abundance
level
globally.
predominance
fibers
remarkable
microplastics
feature
all
surveyed
lakes,
most
primarily
polypropylene
(PP)
polyethylene
terephthalate
(PET)
<2000
μm
length.
ecological
risk
assessment
based
load
index
(PLI)
potential
(PERI)
demonstrated
excepting
Ham
Nghi
Lake
approached
high
season,
both
seasons
remained
minor.
However,
their
widespread
distribution
lake
environments
remains
concern,
requiring
appropriate
control
measures.
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
282, С. 116749 - 116749
Опубликована: Июль 17, 2024
Excessive
nanoplastics
not
only
pose
a
direct
threat
to
the
environment
but
also
have
propensity
adsorb
and
interact
with
other
pollutants,
exacerbating
their
impact.
The
coexistence
of
heavy
metals
in
soils
is
prevalent
phenomenon.
However,
limited
research
existed
about
joint
effects
two
contaminants
on
soil
organisms.
In
this
paper,
we
ascertained
combined
toxicity
polystyrene
(PS-NPs)
copper
(Cu2+)
organisms
(Caenorhabditis
elegans)
at
quantities
that
were
present
environment,
further
exploring
whether
toxicants
synergistic
or
antagonistic.
outcomes
manifested
single
exposure
low-dose
PS-NPs
(1
μg/L)
would
cause
significant
damage
nematodes.
After
treatment
Cu2+,
locomotion
ability
nematode
was
impaired,
accompanied
by
an
elevation
reactive
oxygen
species
(ROS)
level
biphasic
response
antioxidant
enzyme
activity.
Moreover,
Cu2+
induced
mRNA
up-regulation
vit-6,
cyp-35a2,
hsp-16.2,
age-1,
cep-1,
both
which
stress-related
genes.
comparative
analysis
between
groups
(with
without
PS-NPs)
revealed
group
resulted
significantly
greater
toxic
nematodes
compared
alone.
Furthermore,
addition
influenced
metabolic
profiles
Caenorhabditis
elegans
under
stress,
numerous
differential
metabolites
associated
oxidative
defense
mechanism.
Overall,
these
findings
expected
environmental
concentration
elevated
Medical and Veterinary Entomology,
Год журнала:
2024,
Номер
38(2), С. 138 - 147
Опубликована: Март 12, 2024
Abstract
Microplastics
(plastic
particles
<5
mm)
permeate
aquatic
and
terrestrial
ecosystems
constitute
a
hazard
to
animal
life.
Although
much
research
has
been
conducted
on
the
effects
of
microplastics
marine
benthic
organisms,
less
consideration
given
insects,
especially
those
adapted
urban
environments.
Here,
we
provide
perspective
potential
consequences
exposure
within
typical
larval
habitat
mosquito
biology.
Mosquitoes
represent
an
ideal
organism
in
which
explore
biological
not
least
because
their
importance
as
infectious
disease
vector.
Drawing
evidence
from
other
organisms
knowledge
life
cycle,
summarise
some
more
plausible
impacts
including
physiological,
ecotoxicological
immunological
responses.
We
conclude
that
although
there
remains
little
experimental
demonstrating
any
adverse
effect
biology
or
pathogen
transmission,
significant
gaps
remain,
is
now
need
quantify
microplastic
pollution
could
have
such
important
