Procedia CIRP,
Journal Year:
2024,
Volume and Issue:
122, P. 665 - 670
Published: Jan. 1, 2024
Over
the
past
two
decades,
concept
of
circular
economy
has
undergone
significant
development.Notably,
research
efforts
have
been
centered
on
key
elements
essential
for
shift
towards
circularity,
specifically
Value
Retention
Options
(ROs),
aimed
at
optimizing
resource
retention
throughout
product
life
cycles.Given
diverse
application
fields,
these
ROs
conceptualized
in
various
ways.Recycling
is
considered
one
impacting
end-of-life
products
to
reduce
landfills.An
analysis
presented
focusing
recycling
activities
highlight
challenges
encountered
by
manufacturing
industries
and
their
transition
circularity.Examples
fields
involved
are
used
support
analysis.The
helps
bridge
gap
between
priorities
industrial
requirements,
as
it
highlights
shared
confronted
engaged
longest
loops
a
economy.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(1), P. 593 - 593
Published: Jan. 2, 2024
Plastic
production
has
increased
dramatically,
leading
to
accumulated
plastic
waste
in
the
ocean.
Marine
plastics
can
be
broken
down
into
microplastics
(<5
mm)
by
sunlight,
machinery,
and
pressure.
The
accumulation
of
organisms
release
additives
adversely
affect
health
marine
organisms.
Biodegradation
is
one
way
address
pollution
an
environmentally
friendly
manner.
microorganisms
more
adapted
fluctuating
environmental
conditions
such
as
salinity,
temperature,
pH,
pressure
compared
with
terrestrial
microorganisms,
providing
new
opportunities
pollution.
Pseudomonadota
(Proteobacteria),
Bacteroidota
(Bacteroidetes),
Bacillota
(Firmicutes),
Cyanobacteria
were
frequently
found
on
biofilms
may
degrade
plastics.
Currently,
diverse
plastic-degrading
bacteria
are
being
isolated
from
environments
offshore
deep
oceanic
waters,
especially
Pseudomonas
spp.
Bacillus
Alcanivoras
Actinomycetes.
Some
fungi
algae
have
also
been
revealed
degraders.
In
this
review,
we
focused
advances
biodegradation
their
enzymes
(esterase,
cutinase,
laccase,
etc.)
involved
process
polyethylene
terephthalate
(PET),
polystyrene
(PS),
(PE),
polyvinyl
chloride
(PVC),
polypropylene
(PP)
highlighted
need
study
sea.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
271, P. 115942 - 115942
Published: Jan. 12, 2024
The
global
production
and
consumption
of
plastics,
as
well
their
deposition
in
the
environment,
are
experiencing
exponential
growth.
In
addition,
mismanaged
plastic
waste
(PW)
losses
into
drainage
channels
a
growing
source
microplastic
(MP)
pollution
concern.
However,
complete
understanding
environmental
implications
throughout
life
cycle
is
yet
to
be
fully
understood.
Determining
potential
extent
which
MPs
contribute
overall
ecotoxicity
possible
through
monitoring
PW
release
MP
removal
during
remediation.
Life
assessments
(LCAs)
have
been
extensively
utilized
many
comparative
analyses,
such
comparing
petroleum-based
plastics
with
biomass
single-use
multi-use
alternatives.
These
typically
yield
unexpected
or
paradoxical
results.
Nevertheless,
there
still
paucity
reliable
data
tools
for
conducting
LCAs
on
plastics.
On
other
hand,
impact
so
far
not
considered
LCA
studies.
This
due
absence
inventory-related
regarding
releases
characterization
factors
necessary
quantify
effects
MP.
Therefore,
this
review
paper
conducts
comprehensive
literature
order
assess
current
state
knowledge
impacts
that
occur
along
strategies
management
LCA.
Environment International,
Journal Year:
2024,
Volume and Issue:
188, P. 108736 - 108736
Published: May 10, 2024
The
presence
of
microplastics
(MPs)
is
increasing
at
a
dramatic
rate
globally,
posing
risks
for
exposure
and
subsequent
potential
adverse
effects
on
human
health.
Apart
from
being
physical
objects,
MP
particles
contain
thousands
plastic-associated
chemicals
(i.e.,
monomers,
chemical
additives,
non-intentionally
added
substances)
captured
within
the
polymer
matrix.
These
are
often
migrating
MPs
can
be
found
in
various
environmental
matrices
food
chains;
health
effects.
In
addition
to
attributes
MPs,
plastic
surfaces
effectively
bind
exogenous
chemicals,
including
pollutants
(e.g.,
heavy
metals,
persistent
organic
pollutants).
Therefore,
act
as
vectors
pollution
across
air,
drinking
water,
food,
further
amplifying
posed
by
exposure.
Critically,
fragmentation
plastics
environment
increases
risk
interactions
with
cells,
available
leach
adsorb
transfer
pollutants.
This
review
proposes
so-called
triple
nexus
approach
comprehensively
map
existing
knowledge
interconnected
particles,
Based
data,
there
large
gap
regard
cumulative
nexus.
Each
component
known
induce
genotoxicity,
inflammation,
endocrine
disruption,
but
about
long-term
inter-individual
lacking.
Furthermore,
not
readily
excreted
organisms
after
ingestion
they
have
been
accumulated
blood,
cardiac
tissue,
placenta,
etc.
Even
though
number
studies
MPs-associated
impacts
rapidly,
this
underscores
that
pressing
necessity
achieve
an
integrated
assessment
MPs'
order
address
future
gaps.
Environment International,
Journal Year:
2024,
Volume and Issue:
185, P. 108527 - 108527
Published: Feb. 24, 2024
Chlorinated
paraffins
(CPs),
mainly
short-chain
CPs
(SCCPs)
and
medium-chain
(MCCPs),
are
currently
the
most
produced
used
industrial
chemicals
related
to
persistent
organic
pollutants
(POPs)
globally.
These
widely
detected
in
environment
human
body.
As
release
of
SCCPs
MCCPs
from
products
represents
only
a
small
fraction
their
stock
products,
potential
long-term
large
variety
at
waste
stage
has
become
an
issue
great
concern.
The
results
this
study
showed
that,
by
2050,
between
2000
2021
will
cumulatively
generate
226.49
Mt
CP-containing
wastes,
comprising
8610.13
kt
MCCPs.
Approximately
79.72
wastes
is
predicted
be
generated
abroad
through
international
trade
using
magnitude,
distribution,
growth
subject
environmentally
sound
disposal
depend
largely
on
relevant
provisions
Stockholm
Basel
Conventions
forthcoming
global
plastic
treaty.
According
multiple
scenarios
synthesizing
three
conventions,
26.6–101.1
as
POP
which
would
pose
challenge
capacity
China,
well
for
countries
importing
products.
additional
5-year
exemption
period
expected
see
10
disposal.
Thus,
there
urgent
need
strengthen
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(20), P. 9000 - 9012
Published: May 6, 2024
Additive
manufacturing
(AM)
offers
a
variety
of
material
techniques
for
wide
range
applications
across
many
industries.
Most
efforts
at
process
optimization
and
exposure
assessment
AM
are
centered
around
the
process.
However,
identifying
allocation
potentially
harmful
exposures
in
end-of-life
(EoL)
management
is
equally
crucial
to
mitigating
environmental
releases
occupational
health
impacts
within
supply
chain.
This
research
tracks
potential
EoL
materials
US
through
flow
analysis.
Of
generated
materials,
58%
incinerated,
33%
landfilled,
9%
recycled
by
weight.
The
data
set
was
then
used
examine
theoretical
hazards
during
practices
generic
scenario
assessment,
highlighting
importance
ventilation
personal
protective
equipment
all
stages
management.
identifies
pollution
sources,
offering
policymakers
stakeholders
insights
shape
prevention
worker
safety
strategies
pathways.
Journal of Industrial Ecology,
Journal Year:
2024,
Volume and Issue:
28(6), P. 1582 - 1597
Published: Aug. 16, 2024
Abstract
As
the
European
Union
transitions
to
circular
use
of
plastics,
robust
life
cycle
assessments
are
crucial
in
understanding
and
preparing
for
this
new
economy.
Additives
essential
production
all
plastics
but
were
reported
as
missing
from
(LCAs)
plastic
materials
a
decade
ago.
This
study
expands
upon
previous
research
by
investigating
if
additive
impacts
now
included
LCAs
recycled
or
they
still
absent.
In
part
I,
we
conduct
systematic
literature
review
93
on
including
mechanical
recycling
pathways,
distinguish
considered
(i)
in‐text
discussions
(ii)
inventories
(LCIs)
each
study.
We
then
compare
types
inclusion
within
corpus
ascertain
whether
author
knowledge
data
availability
dictates
LCAs.
find
that
disclosure
detailed
specific
across
due
poor
transparency
LCI
overly
generic
disclosures
additives.
The
lack
transparent
indicates
materials,
leading
incomplete
analyses
their
impacts.
Until
addressed,
such
gap
may
lead
inaccurate
material
II,
assess
quality
explore
how
database
have
contributed
omissions
