In
this
study
the
adsorption
of
a
mixture
seven
pharmaceutical
compounds
on
virgin
and
aged
PET-microplastics
(MPs)
has
been
studied.
The
target
comprised
two
widely-used
anti-inflammatory
drugs,
diclofenac
(DCF)
ketoprofen
(KTF),
one
anti-hypertensive,
valsartan
(VLS),
four
common
antibiotics,
indomethacin
(IMC),
trimethoprim
(TMP),
isoniazid
(ISO),
metronidazole
(MTZ).
Regarding
MPs,
types
PET
(virgin
UV-aged)
were
used
in
experimental
procedure.
Kinetic
studies
conducted,
isomers
obtained
revealing
possible
interactions
that
take
place
between
adsorbents
adsorbates.
Among
studied
pharmaceuticals,
DCF
presents
highest
uptake
due
to
its
hydrophobic
nature,
while
aging
appears
induce
drugs
MPs.
Factors
like
pH
or
environmental
matrix
also
evaluated.
results
revealed
sorption
is
pH-dependent,
more
complicated
matrices
wastewater
seawater
exhibit
lower
than
distilled
water
natural
organic
matter
(NOM)
present
increased
salinity,
respectively.
Finally,
desorption
conducted
three
different
values
showing
higher
release
at
alkaline
pH.
was
for
followed
order
DCF>VLS>KTF>IMC>TMP>MTZ>ISO.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
951, P. 175403 - 175403
Published: Aug. 10, 2024
The
present
study
aimed
to
i)
assess
the
disintegration
of
a
novel
bio-packaging
during
aerobic
composting
(2
and
6
%
tested
concentrations)
evaluate
resulting
compost
ii)
analyse
ecotoxicity
bioplastics
residues
on
earthworms;
iii)
microbial
communities
in
'earthworms'
gut
after
their
exposure
bioplastic
residues;
iv)
correlate
microbiota
with
analyses;
v)
chemico-physical
characterisation
earthworms'
exposure.
Both
concentrations
showed
close
90
from
first
sampling
time,
chemical
analyses
identified
its
maturity
stability
at
end
process.
Ecotoxicological
assessments
were
then
conducted
Eisenia
fetida
regarding
fertility,
growth,
genotoxic
damage,
impacts
microbiome.
did
not
influence
but
DNA
damages
measured
highest
dose
tested.
Furthermore
significantly
affect
bacterial
community
composting,
treated
2
exhibited
greater
variability
fungal
communities,
including
Mortierella,
Mucor,
Alternaria
genera,
which
can
use
as
carbon
source.
Moreover,
influenced
Paenibacillus,
Bacillus,
Rhizobium,
Legionella,
Saccharimonadales
genera
being
particularly
abundant
concentration.
Higher
affected
composition
by
favouring
different
such
Pseudomonas,
Ureibacillus,
Streptococcus.
For
Pestalotiopsis
sp.
was
found
predominantly
earthworms
exposed
is
potentially
linked
role
microplastics
degrader.
After
Attenuated
Total
Reflection
analysis
displayed
evidence
ageing
formation
hydroxyl
groups
amidic
earthworm
Comprehensive Reviews in Food Science and Food Safety,
Journal Year:
2024,
Volume and Issue:
23(6)
Published: Nov. 1, 2024
Microplastics
(MPs)
refer
to
tiny
plastic
particles,
typically
smaller
than
5
mm
in
size.
Due
increased
mask
usage
during
COVID-19,
improper
disposal
has
led
masks
entering
the
environment
and
releasing
MPs
into
surroundings.
can
absorb
environmental
hazards
transfer
them
humans
animals
via
food
chain,
yet
their
impacts
on
safety
human
health
are
largely
neglected.
This
review
summarizes
release
process
of
from
face
masks,
influencing
factors,
safety.
Highlights
given
prevalence
combined
toxicities
with
other
hazards.
Control
strategies
also
explored.
The
is
affected
by
factors
like
pH,
UV
light,
temperature,
ionic
strength,
weathering.
chemical
active
surface
large
area,
act
as
vectors
for
heavy
metals,
toxins,
pesticides,
antibiotics
antibiotic
resistance
genes,
foodborne
pathogens
through
different
mechanisms,
such
electrostatic
interaction,
precipitation,
bioaccumulation.
After
being
adsorbed
MPs,
toxicity
these
hazards,
oxidative
stress,
cell
apoptosis,
disruption
metabolic
energy
levels,
be
magnified.
However,
there
a
lack
comprehensive
research
both
well
corresponding
control
strategies.
Future
should
prioritize
understanding
interaction
toxicity,
integrating
detection
degradation
methods
