Environmental Science & Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Фев. 6, 2024
As
an
emerging
type
of
pollutant,
microplastics
have
become
a
global
environmental
problem.
Approximately,
fifth
the
burden
2
diabetes
can
be
attributed
to
air
particulate
pollution.
However,
scientific
knowledge
remains
limited
about
effects
airborne
nanoplastics
(NPs)
exposure
on
metabolic
diseases.
In
this
experiment,
whole-body
system
was
used
simulate
real
atmospheric
environment,
and
three
concentrations
combined
with
actual
concentration
were
selected
explore
NPs
Based
histological
analyses,
studies,
gene
expression,
metabolites,
molecular
signaling
mice
exposed
observed
show
phenotype
systemic
inflammation
complete
insulin
resistance
featuring
excessive
drinking
eating,
weight
loss,
elevated
blood
glucose,
decreased
triglyceride
levels.
After
exposure,
intolerant
glucose
tolerant
insulin.
addition,
could
result
in
long-term
irreversible
hyperglycemia.
Together,
research
findings
provide
strong
basis
for
understanding
hazards
nanopollution
disorders.
Discover Environment,
Год журнала:
2024,
Номер
2(1)
Опубликована: Март 18, 2024
Abstract
The
pollution
caused
by
microplastics
(MPs)
is
a
growing
concern
on
global
scale,
especially
considering
the
significant
proportion
of
time
that
individuals
spend
indoors.
contamination
in
question
has
potential
to
directly
impact
human
population
through
exposure
indoor
dust
and
air.
This
research
undertook
comprehensive
analysis
deposition
MPs
university
classrooms,
employing
various
investigative
tools.
present
study
aimed
comprehensively
analyze
physical
chemical
properties
found
classrooms.
Analyzing
samples
under
stereomicroscope,
predominant
were
identified
as
fibers
varied
colors,
mainly
attributed
clothing.
Sizes
these
significantly
across
different
with
general
average
size
range
120–2222
µm.
observed
morphological
changes
MPs,
including
cracks
grooves,
hint
at
degradation
into
nanosized
plastics
over
time.
observation
raises
concerns
about
increased
concentrations
nanoplastics
environments.
Using
µRaman
analysis,
eleven
types
identified,
potentially
originating
from
clothing,
shoes,
stationery.
majority
polyamide
6,
polypropylene,
12.
scanning
electron
microscope
energy-dispersive
X-ray
spectroscopy
(SEM–EDX)
technique
unveiled
elemental
composition
carbon,
fluorine,
oxygen
being
dominant.
findings
align
past
studies
but
highlight
need
understand
MPs'
structural
components
any
possible
contaminants.
Compared
existing
literature,
this
adopts
methodological
approach
combining
optical
microscopy,
µRaman,
SEM–EDX,
enriching
knowledge
MP
aiding
future
directions.
Environmental Pollution,
Год журнала:
2023,
Номер
343, С. 123233 - 123233
Опубликована: Дек. 28, 2023
We
investigated
microplastic
(MP)
contamination
in
16
commonly-consumed
protein
products
(seafoods,
terrestrial
meats,
and
plant-based
proteins)
purchased
the
United
States
(U.S.)
with
different
levels
of
processing
(unprocessed,
minimally-processed,
highly-processed),
brands
(1–4
per
product
type,
depending
on
availability)
store
types
(conventional
supermarket
grocer
featuring
mostly
natural/organic
products).
Mean
(±stdev)
MP
serving
among
was
74
±
220
particles
(ranging
from
2
chicken
breast
to
370
580
breaded
shrimp).
Concentrations
(MPs/g
tissue)
differed
between
levels,
highly-processed
containing
significantly
more
MPs
than
minimally-processed
(p
=
0.0049).
There
were
no
significant
differences
same
or
types.
Integrating
these
results
consumption
data
American
public,
we
estimate
that
mean
annual
exposure
adults
proteins
is
11,000
29,000
particles,
a
maximum
estimated
3.8
million
MPs/year.
These
findings
further
inform
estimations
human
MPs,
particularly
which
are
important
dietary
staples
U.S.
Subsequent
research
should
investigate
additional
drivers
diet,
including
other
understudied
food
groups
sourced
both
within
outside
