Synergetic and antagonistic effects of microplastics and perfluorooctanoic acid on constructive species in freshwater ecosystems
Journal of Cleaner Production,
Год журнала:
2025,
Номер
unknown, С. 144926 - 144926
Опубликована: Янв. 1, 2025
Язык: Английский
Non-synergistic effects of microplastics and submerged macrophytes on sediment microorganisms involved in carbon and nitrogen cycling
Xueyuan Gao,
Saibo Yuan,
Xiaowei Li
и другие.
Environmental Pollution,
Год журнала:
2025,
Номер
unknown, С. 126213 - 126213
Опубликована: Апрель 1, 2025
Язык: Английский
The Migration and Pollution Risk of Microplastics in Water, Soil, Sediments, and Aquatic Organisms in the Caohai Watershed, Southwest China
Water,
Год журнала:
2025,
Номер
17(8), С. 1168 - 1168
Опубликована: Апрель 14, 2025
The
migration
and
driving
factors
of
microplastics
(MPs),
as
an
emerging
pollutant,
have
been
reported
in
plateau
lakes.
However,
whether
MPs
can
accumulate
to
extreme
degree
the
local
aquatic
organisms
lakes
remains
unclear.
Therefore,
present
study
mainly
aims
investigate
accumulated
tissues
grass
carp
well
reveal
their
processes
Caohai
watershed,
a
typical
lake
southwest
China.
Density
flotation
(saturated
NaCl
solution)
laser
direct
infrared
imaging
spectrometry
were
used
analyze
relative
abundance
morphological
characteristics
MPs,
respectively.
results
showed
that
MPs’
soil,
water,
sediments
ranged
from
1.20
×
103
1.87
104
n/kg,
9
223
n/L,
5.00
102
1.02
contents
composition
forestland
soils
more
plentiful
comparison
with
cultivated
land
marshy
grassland
soils.
Polyethylene
(PE),
polyvinylchloride
(PVC),
PA
caprolactam
(PA6),
hexamethylene
diamine
adipic
acid
(PA66)
detected
carp,
PE
was
all
organs
carp.
MP
concentrations
stomach,
intestines,
tissue,
skin,
gills
54.94
178.59
mg/kg.
pollution
probably
originated
anthropogenic
(road
traffic,
farming
activities,
habits
residents
scattered
around
area,
etc.)
due
watershed’s
considerable
proximity
Weining
city.
In
addition,
wind,
runoff,
rivers,
atmospheric
deposition
locality
directly
indirectly
promoted
migration.
Our
suggested
although
there
is
moderate
sediment,
other
areas,
it
necessary
pay
attention
PVC
via
various
environmental
media
risks
associated
consuming
government
make
several
policies
reuse
recycle
agricultural
film
alleviate
pollution.
Язык: Английский
Microplastic-Enhanced Cadmium Toxicity: A Growing Threat to the Sea Grape, Caulerpa lentillifera
Antioxidants,
Год журнала:
2024,
Номер
13(10), С. 1268 - 1268
Опубликована: Окт. 18, 2024
The
escalating
impact
of
human
activities
has
led
to
the
accumulation
microplastics
(MPs)
and
heavy
metals
in
marine
environments,
posing
serious
threats
ecosystems.
As
essential
components
oceanic
ecosystems,
large
seaweeds
such
as
Caulerpa
lentillifera
play
a
crucial
role
maintaining
ecological
balance.
This
study
investigated
effects
MPs
cadmium
(Cd)
on
growth,
physiology,
biochemistry,
Cd
C.
while
elucidating
underlying
molecular
regulatory
mechanisms.
results
demonstrated
that
exposure
alone
significantly
promoted
growth.
In
contrast,
either
or
combination
with
suppressed
growth
by
reducing
stem
stolon
length,
bud
count,
weight
gain,
specific
rates.
Combined
exhibited
most
pronounced
inhibitory
effect
had
negligible
combined
impaired
antioxidant
defenses
exacerbated
oxidative
damage;
being
detrimental.
Analysis
content
revealed
increased
algae
intensifying
its
toxic
effects.
Gene
expression
analysis
down-regulated
key
genes
involved
photosynthesis,
impairing
both
photosynthetic
efficiency
energy
conversion.
further
these
activated
ribosome
pathway,
supporting
ribosomal
stability
protein
synthesis.
Additionally,
reduced
chlorophyll
B
soluble
sugar
content,
negatively
impacting
photosynthesis
nutrient
accumulation.
summary,
low
concentrations
but
presence
hindered
it
disrupting
Furthermore,
coexistence
intensified
Cd.
These
findings
enhance
our
understanding
how
seaweed
ecosystems
provide
insights
for
assessing
their
risks.
Язык: Английский
Integration of ecological restoration and landscape aesthetics: Mechanisms of microplastic retention by optimization of aquatic plants landscape design in urban constructed wetlands — A case study of the living water park in Chengdu
The Science of The Total Environment,
Год журнала:
2024,
Номер
957, С. 177331 - 177331
Опубликована: Ноя. 12, 2024
Язык: Английский