Frontiers in Toxicology,
Journal Year:
2023,
Volume and Issue:
5
Published: May 4, 2023
Microplastic
(MP)
particles
are
considered
noxious
pollutants
due
to
their
presence
in
aquatic
habitats
at
almost
every
level
of
the
food
chain.
Thus,
entry
MP
into
marine
waterbodies
has
triggered
a
common
research
interest.
Until
recently,
toxicity
polystyrene
towards
creatures
comparison
other
polymers
not
been
widely
investigated.
This
article
provides
an
extensive
overview
occurrence
microplastic
particles,
route
(PS)
ecosystem,
PS
properties
characterization,
and
its
effects
on
biota,
particularly
fishes
microalgae.
Alarming
high
levels
were
found
urban,
coastal,
rural
surface
waters
sediments.
The
fast-screening
technique
began
with
stereoscope
determine
particles’
shape,
size,
color
organism.
SEM
complemented
by
micro
FTIR
or
Raman
spectroscopy
used
evaluate
MP’s
polymer
structures.
findings
present
evidence
suggesting
that
buildup
fish
can
have
long-term
unknown
consequences.
Meanwhile,
microalgae
causes
decrease
chlorophyll
concentration
photosynthetic
activity,
which
may
disrupt
photosynthesis
interfering
electron
characters
leading
production
reactive
oxygen
species
(ROS).
Biochar,
Journal Year:
2025,
Volume and Issue:
7(1)
Published: Jan. 17, 2025
Abstract
Per-
and
polyfluoroalkyl
substances
(PFASs),
commonly
known
as
‘‘forever
chemicals’’,
are
persistent
organic
pollutants
that
widely
distributed
in
the
environment.
Due
to
their
toxicity
resistance
degradation,
PFASs
classified
emerging
contaminants,
increasing
attention
is
being
paid
remediation.
Biochar,
an
environmentally
friendly
cost-effective
adsorbent,
shows
potential
for
remediating
contamination.
The
application
of
biochar
remediation
has
garnered
growing
interest.
Compared
other
adsorbents,
more
economical
raw
materials
its
preparation
readily
available.
However,
there
currently
no
comprehensive
review
summarizing
effects
on
environmental
behavior
PFASs.
This
aims
fill
gap
by
providing
in-depth
discussion
synthesis
existing
literature
this
area.
It
focuses
PFASs,
specifically
addressing
adsorption
mechanisms
factors
influencing
effectiveness
A
proposed
mechanism
which
photodegrades
through
generation
free
radicals,
addition
conventional
(such
pore
filling,
hydrogen
bonding,
hydrophobic
interactions,
electrostatic
interactions),
explored.
Furthermore,
discusses
ability
reduce
likelihood
entering
food
chain
water
soil
evaluates
feasibility
limitations
using
removal.
Finally,
we
identify
future
research
directions
support
safe
effective
use
remediation,
so
promote
advancement
green
technologies.
Graphic
Microplastics
(MPs)
and
per-
polyfluoroalkyl
substances
(PFASs)
are
ubiquitous
contaminants
in
environments,
yet
their
co-occurrence
interactions
remain
insufficiently
understood.
In
this
study,
we
confirmed
the
concurrent
presence
of
MPs
PFASs
distinct
distribution
patterns
a
wastewater
treatment
plant
(WWTP)
through
comprehensive
sampling
analysis
effort.
Significant
correlations
(p
<
0.05)
were
observed
between
specific
types
PFASs,
suggesting
shared
sources.
Moreover,
identified
as
carriers
with
PFAS
concentration
ranging
122
166
ng/g,
predominantly
consisting
perfluorooctanoic
acid
(PFOA)
perfluorobutanoic
(PFBA).
The
laboratory
verification
experiment
revealed
that
could
be
leached
from
aqueous
which
commercial
exhibited
higher
leaching
potential,
highest
combined
perfluorooctanesulfonate
(PFOS),
PFOA,
PFBA
reaching
10.4
ng/mL.
PFOS
demonstrated
desorption
efficiency
exceeding
120%
sorption/desorption
experiments,
confirming
its
release
themselves.
These
results
highlighted
dual
roles
both
sources
PFASs.
contaminant
profiles
across
different
matrices
WWTP
provide
valuable
insights
form
basis
for
further
research
into
proactive
measures
to
effectively
mitigate
environmental
contamination.
Marine Pollution Bulletin,
Journal Year:
2023,
Volume and Issue:
194, P. 115309 - 115309
Published: Aug. 15, 2023
Per-
and
polyfluorinated
alkyl
substances
(PFAS)
have
long
been
known
for
their
detrimental
effects
on
the
ecosystems
living
organisms;
however
long-term
impact
marine
environment
is
still
insufficiently
recognized.
Based
PFAS
persistence
bioaccumulation
in
complex
food
network,
adverse
will
be
exacerbated
by
global
processes
such
as
climate
change
synergies
with
other
pollutants,
like
microplastics.
The
range
of
fluorochemicals
currently
included
umbrella
has
significantly
expanded
due
to
updated
OECD
definition,
raising
new
concerns
about
poorly
understood
dynamics
negative
ocean
wildlife
human
health.
Mitigation
challenges
approaches,
including
biodegradation
studied
materials
environmental
removal
are
proposed
here,
highlighting
importance
ongoing
monitoring
bridging
research
gaps.
EU
regulations,
good
practices
legal
frameworks
discussed,
emphasis
recommendations
improving
ecosystem
management.
