Ecotoxicology and Environmental Safety,
Journal Year:
2022,
Volume and Issue:
243, P. 113958 - 113958
Published: Aug. 18, 2022
Although
the
influence
of
microplastics
(MPs)
in
different
soil
environments
has
been
investigated,
their
effects
on
physiochemical
properties
and
chemical
speciation
heavy
metals
yellow-brown
remains
unknown.
This
study
aimed
to
determine
various
concentrations
linear
low-density
polyethylene
(LLDPE),
polyamide
(PA),
polyurethane
(PU),
polystyrene
(PS),
(LDPE)
MPs
environment
cadmium
(Cd),
copper
(Cu),
lead
(Pb),
zinc
(Zn).
influenced
physicochemical
soil.
The
can
be
altered
by
changing
LDPE
MP.
relationship
between
changes
field
capacity
(FC)
was
approximately
linear.
containing
added
PA,
PU,
were
substantially
improved
(control
vs.
MPs):
FC,
39
%
42.50
for
cation
exchange
(CEC)
45.77,
56.65,
57.44
cmol.kg−1
respectively,
organic
matter
(OM)
content,
40.16
51.68
g.kg−1
PA.
LLDPE
PU
also
simultaneously
affected
increased
acid-soluble
(45.17–54.67
(Cd-F1),
7.24–11.30
(Cu-F1),
4.20–7.23
(Pb-F1),
21.21–31.47
(Zn-F1))
reducible
(24.02–29.41
(Cd-F2),
25.69–34.95
(Cu-F2),
74.29–81.07
(Pb-F2),
28.77–34.19
(Zn-F2))
fractions
metals,
which
bioavailability.
However,
reduced
ecological
risk
increasing
content
residual
fraction
(26.11–40.21
(Cd-F4),
47.63–59.67
(Cu-F4),
17.25–26.76
(Pb-F4),
32.63–50.46
(Zn-F4)).
Changes
impact
might
change
metals.
requires
further
investigation.
TrAC Trends in Analytical Chemistry,
Journal Year:
2022,
Volume and Issue:
158, P. 116898 - 116898
Published: Dec. 26, 2022
Plastic
additives
comprise
a
plethora
of
substances
that
serve
numerous
purposes
in
the
plastic
industry.
These
can
be
used
to
assist
molding
plastics
and
contribute
providing
optimal
performance
material
when
molded
used,
or,
simply,
reduce
costs.
However,
these
additives,
non-polymerized
monomers,
far
more
hazardous
than
their
poly-counterparts,
may
released
throughout
entire
life
cycle
plastics,
posing
risks
environment
and,
ultimately,
human
health.
Hence,
many
studies
have
delved
into
mechanistic
uptake/release
compounds.
Herein,
we
briefly
overview
current
knowledge
on
underlying
processes
affecting
mechanisms.
We
also
outline
potential
ecological
consequences
explore
some
prevailing
analytical
methodologies
for
determination
both
laboratory
studies.
Furthermore,
highlight
key
limitations
currently
available
literature
present
prospective
outlook
future
research.
Frontiers in Environmental Science,
Journal Year:
2022,
Volume and Issue:
10
Published: March 9, 2022
Microplastics
are
<5
mm
in
size,
made
up
of
diverse
chemical
components,
and
come
from
multiple
sources.
Due
to
extensive
use
unreasonable
disposal
plastics,
microplastics
have
become
a
global
environmental
issue
aroused
widespread
concern
about
their
potential
ecological
risks.
This
review
introduces
the
sources,
distribution
migration
agricultural
soil
ecosystems.
The
effects
on
physicochemical
properties
nutrient
cycling
also
discussed.
can
alter
series
key
biogeochemical
processes
by
changing
characteristics,
resulting
activities
functions
microorganisms.
animals
plants,
combined
coexisting
pollutants
(organic
heavy
metals),
risks
human
health
Finally,
prevention
control
strategies
microplastic
pollution
ecosystems
put
forward,
knowledge
gaps
future
research
suggestions
given.
improves
understanding
behavior
ecosystems,
provides
theoretical
reference
for
better
assessment
microplastics.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(5), P. 2617 - 2650
Published: Feb. 22, 2024
The
societal
importance
of
plastics
contrasts
with
the
carelessness
which
they
are
disposed.
Their
superlative
properties
lead
to
economic
and
environmental
efficiency,
but
linearity
puts
climate,
human
health,
global
ecosystems
at
risk.
Recycling
is
fundamental
transitioning
this
linear
model
into
a
more
sustainable,
circular
economy.
Among
recycling
technologies,
chemical
depolymerization
offers
route
virgin
quality
recycled
plastics,
especially
when
valorizing
complex
waste
streams
poorly
served
by
mechanical
methods.
However,
exists
in
interlinked
system
end-of-life
fates,
complementarity
each
approach
key
environmental,
economic,
sustainability.
This
review
explores
recent
progress
made
five
commercial
polymers:
poly(ethylene
terephthalate),
polycarbonates,
polyamides,
aliphatic
polyesters,
polyurethanes.
Attention
paid
not
only
catalytic
technologies
used
enhance
efficiencies
also
interrelationship
other
systemic
constraints
imposed
Novel
polymers,
designed
for
depolymerization,
concisely
reviewed
terms
their
underlying
chemistry
potential
integration
current
plastic
systems.
